The3Tails Movie: A Mermaid Adventure

Movie review by
Grace Montgomery, Common Sense Media
The3Tails Movie: A Mermaid Adventure Movie Poster Image
YouTube stars' feature film has suspense, product tie-ins.
  • G
  • 2015
  • 61 minutes

Parents say

age 10+
Based on 6 reviews

Kids say

age 12+
Based on 5 reviews

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A lot or a little?

The parents' guide to what's in this movie.

Educational Value

Teaches about the ecosystem of the ocean and how it's affected by pollution, trash. Gives tips for how you can lessen your environmental impact.

Positive Messages

It's everyone's responsibility to protect and repair the ocean. Use your gifts to help others.

Positive Role Models & Representations

The 3Tails learn the importance of helping the ocean and others with their gifts, but they also lie to their parents. Some weird mixed messages about what's morally right and whether it's OK to cause harm to someone to help someone else.

Violence & Scariness

Some mild suspense when someone is watching Emily and leaving her mysterious notes. The girls are kidnapped and tied up. Someone draws blood from Emily against her will.

Sexy Stuff

Some jokes about Emily having a secret admirer when someone leaves her flowers.


"Crap" twice.


The film is based on a YouTube series. There's also a line of mermaid tails for sale that look like the tails the girls wear in the movie, along with other products. References to Sea World, The Hunger Games, and Finding Nemo.

Drinking, Drugs & Smoking

What parents need to know

Parents need to know that The 3Tails Movie: A Mermaid Adventure is a feature-length film based on a YouTube series starring three teenage girls playing mermaids. There's also a product company, the 2Tails, that makes and sells mermaid tails that match the ones worn by the girls in the movie. There's minor profanity ("crap" is used twice) and some mild suspense when the girls are kidnapped by someone hoping to harness their mermaid power, which may be scary for very young kids. The movie preaches about the importance of keeping the ocean clean and explains how pollution affects the ocean's ecosystem. There are also some positive messages about using your special talents for good and helping others, but the message gets a bit muddied when (SPOILER ALERT) the girls protect the man who orchestrated their kidnapping but condemn the woman who did the dirty work. Viewers who haven't seen the YouTube show may also have trouble following the plot, since some characters and plot points assume you've seen the show. But Friends fans will get a kick out of Janice's (Maggie Wheeler) cameo as Maria the housekeeper.

User Reviews

  • Parents say
  • Kids say
Adult Written bytrashyfinn August 17, 2018


this is not worth your time. I cant believe it’s 4.5 stars on Netflix. If you want home made movies with bad acting, then feel free to watch this. otherwise, th... Continue reading
Adult Written byavaclaire4 July 19, 2018


This movie looked like it was made with imovie. Every time a person talked they zommed into their face. At first I had thought it was a class project because of... Continue reading
Teen, 16 years old Written bycousins4ever June 23, 2019

so cringey it’s funny

i think this movie is so worth your time because it’s so bad. it’s so cringey it’s funny. our cousin tradition is watching this movie every summer and the fact... Continue reading
Teen, 17 years old Written byEmmatheawesome May 25, 2019

Worst movie I have ever seen in my 16 years of existence

Watch this movie if you enjoy bad acting or want a good laugh. This movie is not intentionally funny but it’s hilarious cause of how terrible it is. It makes ab... Continue reading

What's the story?

Emily (Natasha Garretón) feels like someone is watching her and starts getting secret notes and messages claiming that someone knows who she really is. But does someone really know that she and her friends Jackie (Sofia Garretón) and Selena (Marlena Lerner) can turn into mermaids? As the girls try to figure out who may know their secret, they find themselves kidnapped by someone looking to harness their mermaid powers. But is this person looking to hurt the girls? Or is it just a misguided attempt to help someone he loves?

Is it any good?

Though fans of the 3Tails YouTube series may be excited to see more of these finned friends, viewers who haven't seen the series will probably be left floundering. There are characters who are never explained (it's assumed we know who they are), dangling plot points, and mysteries that never seem to be solved. There's also some painfully amateur effects and acting. It's admirable that a group of young teens -- and their parents -- created a YouTube series, a product company, and now a full-length movie, but unfortunately, it doesn't make for very good cinema.

Ocean lovers will no doubt enjoy the beautiful shots of sea life, and mermaid fans will love seeing the girls swim through pristine waters. But only die-hard fans of the show will probably enjoy this movie, and parents may not be too thrilled about the available product tie-ins.

Talk to your kids about ...

  • Families can talk about the myth of mermaids. Why do you think mermaid stories are so popular?

  • The movie shows how plastic and other trash pollute the ocean. How can you help lessen pollution? Do you think you can make a difference?

  • Why do you think so many stars today get their start on YouTube? Why is it such a popular content platform?

Movie details

Our editors recommend

For kids who love magic and fantasy

Themes & Topics

Browse titles with similar subject matter.

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