As they celebrate their high school graduation, four friends are involved in a hit-and-run accident when their car hits and apparently kills a pedestrian on an isolated roadway. They dispose of the body and vow to keep the incident a secret, a year later somebody starts sending them letters bearing the warning "I Know What You Did Last Summer."

  1. Kevin Williamson


  2. Lois Duncan


  3. Jim Gillespie


Top Billed Cast

  1. Jennifer Love Hewitt

    Jennifer Love Hewitt

    Julie James

  2. Sarah Michelle Gellar

    Sarah Michelle Gellar

    Helen Shivers

  3. Ryan Phillippe

    Ryan Phillippe

    Barry William Cox

  4. Freddie Prinze Jr.

    Freddie Prinze Jr.

    Ray Bronson

  5. Bridgette Wilson

    Bridgette Wilson

    Elsa Shivers

Full Cast & Crew

I Know What You Did Last Summer
I Know What You Did Last Summer



Status Released

Release Information

  • October 17, 1997


    Under 17 requires accompanying parent or adult guardian 21 or older. The parent/guardian is required to stay with the child under 17 through the entire movie, even if the parent gives the child/teenager permission to see the film alone. These films may contain strong profanity, graphic sexuality, nudity, strong violence, horror, gore, and strong drug use. A movie rated R for profanity often has more severe or frequent language than the PG-13 rating would permit. An R-rated movie may have more blood, gore, drug use, nudity, or graphic sexuality than a PG-13 movie would admit.

Original Language English

Runtime 1h 40m

Budget $17,000,000.00

Revenue $125,586,134.00

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