I Know What You Did Last Summer Movie Poster Image

I Know What You Did Last Summer



Bloody '90s horror movie has graphic violence, profanity.
  • Rated: R
  • Genre: Horror
  • Release Year: 1997
  • Running Time: 101 minutes

What parents need to know

Positive messages

No positive messages.

Positive role models

The teens run away from a seemingly fatal accident. One girl does act as the conscience of the gang, doing the most to find out about the identity of their hit-and-run victim. While three of the four characters show remorse over their actions, one of the characters doesn't seem to show any. 


A man is struck by a car and is seemingly dead; his bloodied and lifeless body is tossed into a bay. A man murders several characters by stabbing them in the chest, throat, or back with a giant hook. Lots of blood, dead bodies. A hand is severed from an arm as it grinds through a pulley. A fistfight. Some physical and verbal bullying. 


Some sexual innuendo. 


Frequent profanity, including "f--k" and variations. "A--hole," "s--t," "prick." A male character makes sexually suggestive remarks about his girlfriend while she's taking part in a beauty pageant. 


Character drinks from a Diet Coke can. 

Drinking, drugs, & smoking

A young man sits on the edge of a cliff drinking from an unmarked bottle of alcohol. Teens smoke cigarettes and drink to excess while on the beach. On the drive home from the beach, one of the four teens continues drinking heavily from a bottle of whiskey and behaves in an extremely drunk manner; his actions precipitate the driver of the vehicle hitting and seemingly killing a man who was crossing the road. 

Parents Need to Know

Parents need to know that I Know What You Did Last Summer is a 1997 horror movie about four teens who attempt to hide the evidence of a drunken hit-and-run they perpetrated only to find that the man they thought they killed seems to be alive and all too eager for revenge. There is frequent horror movie violence and gore -- characters are shown up-close getting stabbed to death in the throat, chest, and back with a giant hook. A young man who is later discovered to have committed suicide is shown sitting on the edge of a cliff while drinking from an unmarked bottle of alcohol. The four lead teen characters drink heavily while on the beach; one character drinks from a large bottle of whiskey and behaves in an extremely drunk fashion, resulting in a car crash and apparent hit-and-run that sets the story in motion. There is also some bullying, both verbal and physical. Profanity includes "f--k" and its variations.

What's the story?

Four graduating high school seniors, couples Julie (Jennifer Love Hewitt) and Ray (Freddie Prinze Jr.) and Helen (Sarah Michelle Gellar) and Barry (Ryan Phillippe), are looking forward to graduation and promising young-adult lives as beauty queens and football heroes. But, driving recklessly after a night of drinking and cuddling on the beach, they run over a stranger. Hothead Barry, perceiving their bright tomorrows in jeopardy, has them dump the body in the sea and swears them all to secrecy. Horrifically, the mangled victim, going under, appears to be still alive. A year later, college-student Julie gets a ransom-style note reading, "I know what you did last summer," which compels her to reunite with her since-estranged friends, who claim ignorance about who could have sent the note and why. Barry suspects it came from a much-disliked schoolmate who had encountered them that grim night, and he tries to intimidate the kid with bullying. But then this suspect turns up murdered himself -- just the opening of a series of stalkings and killings.

Is it any good?


This one's too bloody and brutal for kids. Early in this youth-oriented thriller, a group of teenagers tells each other scary "urban legend" stories about maniacs with hooks for hands. As much as parents might prefer that kids sit around at night with flashlights, wide-eyed and trembling, reciting tales from the Bible, the Arabian Nights, Twain, Dostoyevsky, or F. Scott Fitzgerald, young people always seem to go back to the thrill of morbid stuff with the hook-handed maniacs. And this holds true whether they're gathered around campfires in the woods or the cool fire of home video. I KNOW WHAT YOU DID LAST SUMMER was a popular hit tapping into that spook-story appeal, with a good-looking cast who had been reigning on popular TV shows of the time. But there's not much under the surface (or even on the surface, for that matter) besides a familiar setup. It derives from a Lois Duncan YA novel of the same title that's been avidly read ever since its publication in 1974, but the bulk of the story deviates.

But what I Know What You Did Last Summer does have is a sort of morality -- insofar as the youths' covering up their misdeed has negative repercussions, and not just the obvious, gory ones. Under the cloud of what they did last summer, the once-close quartet drifts apart. Their suspicions, eventually directed against each other, make them easier targets for the real villain. It might be noted that the burden of guilt gets lightened a little by a surprise plot twist: The road accident had actually interrupted a murder-in-progress, and the victim was doomed anyway. Alfred Hitchcock this isn't, although scriptwriter Kevin Williamson came closer to that lofty ambition with the similarly bloody but dark-humored Scream and its sequels, effective whodunits styled as semi-humorous takeoffs of slasher movies such as this one.

Families can talk about...

  • Families can talk about the enduring appeal of horror movies. Why do people, especially teens, love being scared?

  • How is background music used to heighten moments of suspense? How is background music used to heighten scenes in other genres, such as Westerns, comedies, and war movies?

  • How is the element of surprise a crucial feature of horror movies? How does surprise attempt to create scares in this particular movie? 

Movie details

Theatrical release date:May 4, 1997
DVD/Streaming release date:June 16, 1998
Cast:Jennifer Love Hewitt, Ryan Phillippe, Sarah Michelle Gellar
Director:Jim Gillespie
Studio:Columbia Tristar
Topics:High school
Run time:101 minutes
MPAA rating:R
MPAA explanation:strong horror violence and language

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Parent Written byBishop Loves Gir October 18, 2011

A legendary Movie!

yes this movie is violent but kids have seen worse.Cursing is what you really have to worry about.You barely see the characters be killed and its brief and a little scary.some jump-out-of-your-seat moments but its a really fun and good movie you will love it!
What other families should know
Too much violence
Too much sex
Too much swearing
Adult Written by90210fan February 1, 2011
Love it not real bad compared to. The new scary movies
Adult Written bydrymarc67 April 9, 2008


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