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  • Is it age appropriate?

    About our ratings

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    Not age appropriate for kids under 5, age appropriate for kids over 7; suggested age 7.

  • Is it any good?

    2.0
  • Common Sense says

    Underwhelming alien comedy has some suggestive humor.

Themes in this movie include:   dating/crushes, friendship, growing up

Why We Rated This on for Ages 7 and Up

The good stuff

  • Educational value:

    Not an issue.
  • Messages:

    Much of the positive stuff is secondary to the suggestive humor, but Lem and his friends do work together to help Chuck, and Chuck learns to trust the aliens, despite his initial hesitation.
  • Role models:

    Some characters are less than admirable, but Lem and Neera are positive role models: Lem takes a risk to trust Chuck, and Neera believes in peaceful protest to enact change.

What to watch out for

  • Violence & scariness:

    An alien general and soldiers try to take down the American astronaut with military weapons and guns. An alien doctor is after Chuck's brain -- for scientific reasons, of course...
  • Sexy stuff:

    "Parking" aliens talk about how it's their first time "parking" (i.e. kissing in car). Two alien adolescents flirt with each other and eventually kiss. A female alien with robust cleavage gets angry at a male alien who's staring at her. A character makes repeated references to alien "probes" and how to discourage them. The astronaut tries to teach an alien how to romance "chicks." After seeing the astronaut naked (he drops his towel for a second, but the audience doesn't see anything), an alien jokes "that's a funny place for an antenna."
  • Language:

    Mild language includes "what the...," "moron," and "stupid." There's also crass humor that includes commentary about  "chicks," "alien probes," and a  penis joke (the alien thinks it's an "antenna").
  • Consumerism:

    Twix candy bars, Sea Monkeys, and Volkswagen are recognizable/discussed brands. There's also an iPod-looking device and many obvious references to other movies.
  • Drinking, drugs, & smoking:

    Not an issue.

What Parents Need to Know

This review of Planet 51 was written by Sandie Angulo Chen

Parents need to know that this animated alien comedy earns its PG rating with a fair bit of sexualized humor -- including jokes about anal probing and penises which may go over younger kids' head (though middle schoolers won't be duped -- in fact, they'll probably find it hilarious). There's also some mostly mild violence -- though weapons are involved -- as the alien army attempts to capture and subdue a human astronaut (voiced by Dwayne "The Rock" Johnson), as well as references to a maniacal doctor's desire to suck out Chuck's brain for scientific reasons. The language is mostly tame ("moron" and "stupid"), if disrespectful; beyond the sometimes-crude jokes, the sexuality revolves around one character's infatuation with another, which culminates in a kiss. Despite taking place on another planet, there are a few brands featured in the movie, including Volkswagen, Twix, and iPods.

Families Can Talk About

Talk to your kids about the media in their life. We have more tools and tips that can help
  • Families can talk about how the movie plays on the media's standard jokes about and portrayal of aliens. Who is the "real" alien in Planet 51? How do the movies and comic books that characters read on Planet 51 affect the way its population reacts to Chuck?
  • What purpose do all of the pop culture references -- particularly to well-known movies -- serve? Is it funny? Is it original?
  • To what kind of movies is Planet 51 an homage? How are the '50s portrayed?
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More on Planet 51

What’s the Story?

On a distant planet that's exactly like an idealized version of 1950s America but inhabited by green aliens, adolescent Lem (voiced by Justin Long) works at a planetarium and spends his time hanging out with his best friend Skiff (Seann William Scott) and pining over his pretty neighbor Neera (Jessica Biel). When NASA astronaut Chuck Baker (Dwayne "The Rock" Johnson) lands on the planet, he's astounded to realize that there's already life on Planet 51 -- and that all the "aliens" speak and understand English and enjoy the diners, muscle cars, drive-ins, and B-movies reminiscent of the '50s. Unfortunately for Chuck, the most popular movie is about a "humaniac alien" that turns everyone into brainwashed zombies, so the planet's military tries to hunt Chuck down. But Lem and his pals strike up a friendship with Chuck and agree to help him get back to Earth before he's captured, studied, and imprisoned.

Is It Any Good?

Even if you take Pixar's incredibly sophisticated, high-grossing movies out of the running as a comparison, PLANET 51 is uninspired and forgettable. The movie's animation (particularly the landscape backgrounds) is flat, the dialogue is overly cluttered with pop culture references (to everything from The Right Stuff and E.T. to The Terminator and the Macarena). Allusions and double entendres work when they're seamlessly woven into a family-friendly script (as in the Shrek movies), but the lame penis and anal probing jokes are just off-putting in Planet 51.

Young kids may be drawn to the alien characters, especially comic book-obsessed Skiff and the dog-like creature that has toxic pee and a penchant for terrorizing the local mail carrier. And adults may get a laugh or two out of Neera's suitor Glar (Alan Marriott), a VW-van-driving, guitar-playing hippie who protests the planet's violent reaction to Chuck. But Johnson, who has proven he's a surprisingly talented family movie star, isn't given much to work with as the cocky astronaut, and Lem and Neera's "romance" is only slightly amusing when Lem goes to Chuck for dating advice. Ultimately, if you're hankering for '50s nostalgia, check out Back to the Future -- and for animated alien comedies, stick with Monsters vs. Aliens.

Movie Details

Studio: Tristar Pictures, Director: Jorge Blanco
Run time: 90 minutes
Theatrical release: 11/20/2009
MPAA Rating: PG for mild sci-fi action and some suggestive humor

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Most Recent Reviews

  1. Adult Reviewer
    I rate this title iffy for age 12 and give it 1.0
    • My concerns are:
    • Excessive violence
    • Inappropriate sexual content
    • Inappropriate language
    • Excessive consumerism
    • Negative message
    • Negative role models

    Character growth does not compensate for negative messages throughout

    We were on the border of walking out with our 6-yo daughter after 15 minutes. Jokes for adults about anal probes, penis-as-antenna. Too much violence between characters. Male alien staring at female alien's cleavage was made into a joke. Astronaut teaches main character into how to seduce women. Chick-magnet talk. Horrifying threat of brain removal via circular saw, revisited at end credits. Lots of "gunplay". Minor character growth does not redeem the gratuitous lowbrow stimulation. Product placements were pretty obvious. I think this would be fine beginning early teens.

  2. I rate this title on for age 7 and give it 3.0
    • My concerns are:
    • Inappropriate sexual content
    • Excessive consumerism
    • My highlights are:
    • Good role models

    funny

    funny and quite good

  3. Kid Reviewer Age 8
    Lives in Texas
    I rate this title on for age 5 and give it 5.0
    • My concerns are:
    • Excessive violence
    • Inappropriate language
    • Excessive consumerism

  4. Adult Reviewer
    I rate this title iffy for age 5 and give it 3.0
    • My concerns are:
    • Inappropriate sexual content
    • My highlights are:
    • Positive messages

    It is worth taking your little ones to the film, however any other age group would find it boring

    This film is quite funny at some parts, and even small children will like the slapstick comedy. There was a joke about someone's private parts but other than that, it's safe for anyone to watch. I only had a few chuckles and those parts was all from the trailer. But your little ones will probably love this movie.

  5. I rate this title off for age 6 and give it 1.0
    • My concerns are:
    • Excessive violence
    • Inappropriate sexual content
    • Inappropriate language

    TERRIBLE

    This was the most dissapointing, annoying, boring, and most well bad movie i have ever scene!!!! It was boring and not even slightly entertaining! A TERRIBLE DISSAPOINTMENT!

  6. Kid Reviewer Age 11
    I rate this title iffy for age 3 and give it 2.0
    • My concerns are:
    • Inappropriate sexual content
    • My highlights are:
    • Positive messages

    alright....

    it was fun to watch but i have seen better. and the joke with the penis whould have been funny if it was in a movie for teenagers

  7. Teen Reviewer Age 16
    I rate this title off for age 6 and give it 2.0
    • My concerns are:
    • Inappropriate sexual content
    • Inappropriate language

    this was a terrible movie skip it not too inappropreate but preety bad for a pG MOVIE.

  8. Kid Reviewer Age 12
    Lives in Maryland
    I rate this title iffy for age 9 and give it 4.0
    • My concerns are:
    • Inappropriate sexual content
    • My highlights are:
    • Positive messages

    Very Funny Movie!

    This movie was surprisingly good. I expected it to be OK, but it turned out to be a really good film. There is some suggestive humor, such as a reference to a human's "antenna", sticking corks up your butt to avoid probing, and a few other things. It was overall a really good movie, and I don't understand why Common Sense says it was "underwhelming."

  9. Parent Reviewer
    I rate this title iffy for age 2 and give it 3.0
    • My highlights are:
    • Positive messages

    Ok, but missing something.

    It was ok not the best movie. The message was about accepting peoples difference and looking under the skin, but I did not like that the message got lost in the alien propaganda. All the similes to earth while cute were missing the pop of a good kids movie. I probably would not watch this movie again and diffently wouldn't buy it.

  10. Parent Reviewer
    I rate this title iffy for age 10 and give it 3.0
    • My concerns are:
    • Inappropriate sexual content
    • Inappropriate language
    • Excessive consumerism
    • My highlights are:
    • Positive messages

    I thought it was very entertaining. I did not appreciate the humor about body parts and cavities. It DID NOT go over my 5 year old's head about the "antennae" - she promptly shouted "That's not an antennae, that's his p...." It was unnecessary and really annoyed me that the movie company put some of that stuff in there - it made me feel a bit "tricked" into seeing a family movie that was questionable even for my 8 year old. That said, I really liked the characters - the astronaut was fun, and I did like the message about friendship, and also about diversity.

  11. I rate this title on for age 8 and give it 2.0
    • My concerns are:
    • Excessive violence
    • Inappropriate sexual content
    • Inappropriate language

    animated movie with lots of sexual humor does not fully satisfy

    I just watched this movie yesterday with my friend at the movie theater and it was really really boring. I mean there a couple funny bits that made us laugh but besides that it was awful! And this movie is really inapropreat for younger kids. 1. because of the sci-fi action 2. because of some language like Freakin and 3. Because of the none stop sexual humor. That is the biggest concern i would have there is way to much of it!!! I would recomend this to kids ages 8-9. But kids older than that will find themselves falling asleep.

  12. Adult Reviewer
    I rate this title iffy for age 6 and give it 2.0
    • My concerns are:
    • Excessive violence
    • Inappropriate language
    • Negative message

    Pass on this one

    My 5 year old son and I saw this and we both agreed that it wasn't a very good movie. He didn't like it at all, too scary for him, although I thought it was tame compared to some movies aimed at this age group. There are some crude jokes and negative messages.

  13. Teen Reviewer Age 15
    I rate this title on for age 8 and give it 3.0
    • My highlights are:
    • Positive messages
    • Good role models

    It's an average kids movie, but it had a few inappropriate jokes.

  14. I rate this title on for age 6 and give it 3.0

    This movie is cute. It has a few references that lean more toward adults, but other wise a fairly good movie.

  15. I rate this title on for age 6 and give it 3.0

    This movie is cute. It has a few references that lean more toward adults, but other wise a fairly good movie.

  16. Teen Reviewer Age 16
    Lives in Vermont
    I rate this title on for age 2 and give it 1.0

    ok

    i thought it was a pretty good movie but i feel like the directer could have put a little more effort into the movie

  17. Adult Reviewer
    Lives in Oklahoma
    I rate this title on for age 7 and give it 3.0

    Rent it

    I was quite disappointed in this movie. I took my two sons, ages 9 and 5. They only laughed / chuckled maybe twice throughout the entire show. There were also several references that I would rather not have them see or hear in a children's movie. There are several, although vaugue, references to anal probing. One character uses the word "freakin'." Also, during a scene where the astronaut is naked, one of the "aliens" says "that's a funny place for your antenna." I would recommend this movie as a rental - but it's not worth the money spent at the theatre.

  18. Parent Reviewer
    Lives in North Carolina
    I rate this title iffy for age 8 and give it 1.0

    Best part were in the trailer.

    Totally lame. The adults did not like nor did the kids (10 year old boy and two 7 year old girls. Might be worth renting, but save your money on the theater tickets.

  19. Adult Reviewer
    Lives in Texas
    I rate this title on for age 7 and give it 4.0
    • My concerns are:
    • Inappropriate sexual content
    • My highlights are:
    • Positive messages

    Funny and good message.

    We loved it. Son 9 & daughter 7, thought it was hilarious. I did not like the anal probe or a few other things but I thought the message about us not prejudging and being more accepting of others different from us was good and open a good dialogue with my kids. We enjoyed it.

  20. Kid Reviewer Age 12
    I rate this title on for age 2 and give it 5.0
    • My highlights are:
    • Educational
    • Positive messages
    • Good role models

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