Is I Know What You Did Last Summer appropriate for children?

# I Know What You Did Last Summer - Parent Guide This R-rated horror thriller follows five friends hiding a deadly car accident, only to be hunted by someone seeking revenge a year later. Expect strong violence and scares, plus frequent profanity and some sexual content. It's designed for mature audiences and not appropriate for children under 17.

What age is I Know What You Did Last Summer suitable for?

Our verdict for I Know What You Did Last Summer is: Not recommended. See the age grid on this page for specific recommendations by age group.

Is I Know What You Did Last Summer safe for children?

Content breakdown

🔫

Violence

Strong

🗣️

Language / Profanity

Strong

🔞

Sexual Content

Moderate

👻

Horror / Scary

Strong

About this movie

Type

Movie

Released

2025

Rating

Genre

Horror, Thriller, Mystery

Synopsis

When five friends inadvertently cause a deadly car accident, they cover up their involvement and make a pact to keep it a secret rather than face the consequences. A year later, their past comes back to haunt them and they're forced to confront a horrifying truth: someone knows what they did last summer…and is hell-bent on revenge.

Cast

Chase Sui Wonders

Ava Brucks

Madelyn Cline

Danica Richards

Sarah Pidgeon

Stevie Ward

Jennifer Love Hewitt

Julie James

Full cast on IMDb ›

Age suitability

Under 6

Not yet

Ages 6–8

Not recommended

Ages 9–12

Not recommended

Ages 13+

Not recommended

Where to watch

🎬 Find on Amazon

Affiliate links support ScreenWise at no extra cost to you.

Parents also checked

Ratings based on MPAA/TV classification and TMDB metadata. Updated March 2026.
Every child is different — always preview content for your family's specific needs.