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I Know What You Did Last Summer is an American horror media franchise owned by Sony Pictures Entertainment, and consisting of three slasher films and one television series based on the 1973 novel by Lois Duncan. The first installment was written by Kevin Williamson, directed by Jim Gillespie, and released in 1997.
| I Know What You Did Last Summer | |
|---|---|
.png) Official franchise logo | |
| Created by | Lois Duncan |
| Original work | I Know What You Did Last Summer (1973) |
| Owner | Sony Pictures Entertainment |
| Years | 1997–present |
| Films and television | |
| Film(s) |
|
| Television series | |
| Direct-to-video | |
The first two installments star Jennifer Love Hewitt, Freddie Prinze Jr. and Muse Watson. Co-starring Sarah Michelle Gellar, Ryan Phillippe, in addition, the supporting cast includes: Johnny Galecki in the first film, with Brandy, Mekhi Phifer and Matthew Settle in the second film.
In 1973, Lois Duncan's I Know What You Did Last Summer was published. It was republished as a tie-in to the film in 1997 and once again in 2018 with some of its content modernized. The film adaptation reenvisioned the story of the novel as a violent slasher film, as opposed to the slow-burn mystery nature of the novel.
| Films | U.S. release date | Director | Screenwriter(s) | Story by | Producer(s) |
|---|---|---|---|---|---|
| I Know What You Did Last Summer | October 17, 1997 | Jim Gillespie | Kevin Williamson | Erik Feig, Neal H. Moritz and Stokely Chaffin | |
| I Still Know What You Did Last Summer | November 13, 1998 | Danny Cannon | Trey Callaway | Erik Feig, Neal H. Moritz, Stokely Chaffin, Jose Ludlow and William S. Beasley | |
| I'll Always Know What You Did Last Summer | August 15, 2006 | Sylvain White | Michael D. Weiss | Erik Feig and Neal H. Moritz | |
| Untitled fourth film | July 18, 2025 | Jennifer Kaytin Robinson | Jennifer Kaytin Robinson & Sam Lansky and Leah McKendrick |
Jennifer Kaytin Robinson & Leah McKendrick | Neal H. Moritz |
I Know What You Did Last Summer (1997)
After an accident on a winding road, four teens make the fatal mistake of dumping their victim's body into the sea. But exactly one year later, a mysterious fisherman begins stalking the friends.
I Still Know What You Did Last Summer (1998)
The murderous fisherman with a hook stalks the two surviving teens, Julie James and Ray Bronson who left him for dead. Despite Julie's warnings, her friends do not believe her until it is too late, and the fisherman begins a second murder spree at a posh island resort in the Bahamas.
I'll Always Know What You Did Last Summer (2006)
A group of teenagers in Colorado find themselves being stalked and killed one by one by a mysterious figure with a hook, exactly one year after they covered up a friend's accidental death.
Untitled fourth film (2025)
In September 2014, Sony Pictures revealed plans to remake the film, with Mike Flanagan and Jeff Howard writing the script. The film was a high priority and was initially set for release in 2016. The project required an estimated budget of $15–20 million.[1][2] Flanagan confirmed that his new iteration of the franchise would be a reboot and not include elements of the 1973 novel nor of the 1997 feature film.[3] The project was ultimately never made and was subsequently canceled.[4]
In February 2023, after years of remaining in development hell, a legacy sequel was announced to be in development with Jennifer Love Hewitt and Freddie Prinze Jr. in negotiations to reprise their respective roles.[5] In March, however, Prinze Jr. stated that he had not yet signed on to reprise his co-starring role.[6][7][8] In December, Hewitt stated that she would definitely reprise her lead role.[9][10] Prinze Jr. was confirmed as part of the cast in September 2024,[11] and the untitled film is scheduled for a release date of July 18, 2025.[12]
| Series | Season | Episodes | First released | Last released | Showrunner(s) | Network(s) |
|---|---|---|---|---|---|---|
| I Know What You Did Last Summer | 1 | 8 | October 15, 2021 | November 12, 2021 | Sara Goodman | Amazon Prime Video |
I Know What You Did Last Summer (2021)
Amazon Studios acquired the rights in July 2019 to develop a television series adaptation with Neal H. Moritz and James Wan producing.[13][14] Craig Macneill directed the pilot episode, written by Sara Goodman.[15] Madison Iseman, Brianne Tju, Ezekiel Goodman, Ashley Moore, Sebastian Amoruso, Fiona Rene, Cassie Beck, Brooke Bloom, and Bill Heck star in the series.[16] It was released on October 15, 2021.
| Characters | Films | |||
|---|---|---|---|---|
| I Know What You Did Last Summer | I Still Know What You Did Last Summer | I'll Always Know What You Did Last Summer | Untitled fourth film | |
| 1997 | 1998 | 2006 | 2025 | |
| Ben Willis The Fisherman |
Muse Watson | Don Shanks | ||
| Julie James | Jennifer Love Hewitt | Jennifer Love Hewitt | ||
| Ray Bronson | Freddie Prinze Jr. | Freddie Prinze Jr. | ||
| Film | Crew/detail | ||||||
|---|---|---|---|---|---|---|---|
| Composer(s) | Cinematographer(s) | Editor(s) | Production companies | Distributing companies | Running time | ||
| I Know What You Did Last Summer | John Debney | Denis Crossan | Steve Mirkovich | Mandalay Entertainment | Columbia Pictures | 1 hr 41 mins | |
| I Still Know What You Did Last Summer | John Frizzell | Vernon Layton | Peck Prior | 1 hr 40 mins | |||
| I'll Always Know What You Did Last Summer | Justin Burnett | Stephen M. Katz | David Checel | Mandalay Entertainment, Original Film, Destination Films |
Sony Pictures Home Entertainment | 1 hr 32 mins | |
| I Know What You Did Last Summer (TV series) |
Drum & Lace, and Ian Hultquist |
Anka Malatynska & Shawn Mauer | Ray Daniels, Trevor Baker, Jo Francis, Monica Daniel, Marc Pollon, and Christopher M. Meagher | Mandalay Television, Original Film, Destination Films, Sony Pictures Television Studios, Atomic Monster, Amazon Studios, Off Center Inc. |
Sony Pictures Television, Amazon Prime Video |
6 hrs 20 mins (8 episodes) | |
Box office performance
| Film | Box office gross | Budget | Reference | ||
|---|---|---|---|---|---|
| North America | Other territories | Worldwide | |||
| I Know What You Did Last Summer | $72,586,134 | $53,000,000 | $125,586,134 | $17 million | [17][18] |
| I Still Know What You Did Last Summer | $40,002,112 | $44,000,000 | $84,002,112 | $24 million | [19][20] |
| Total | $112,588,246 | $97,000,000 | $209,588,246 | $41,000,000 | |
Critical and public response
| Title | Rotten Tomatoes | Metacritic | CinemaScore[21] |
|---|---|---|---|
| I Know What You Did Last Summer (1997) | 46% (78 reviews)[22] | 52 (17 reviews)[23] | B- |
| I Still Know What You Did Last Summer | 7% (58 reviews)[24] | 21 (19 reviews)[25] | B |
| I'll Always Know What You Did Last Summer | 0% (7 reviews)[26] | — | — |
| I Know What You Did Last Summer (The Series) | 41% (46 reviews)[27] | 45 (4 reviews)[28] | — |
| Title | U.S. release date | Length | Performed by | Label |
|---|---|---|---|---|
| I Know What You Did Last Summer: The Album | October 7, 1997 | 53:40 | Various Artists | Columbia Records |
| I Know What You Did Last Summer: Original Motion Picture Score | October 7, 1997 | 50:44 | John Debney | Super Tracks |
| I Still Know What You Did Last Summer: Music from the Motion Picture | November 17, 1998 | 50:57 | Various Artists | 143 Records and Warner Bros. Records |
| I Know What You Did Last Summer: Music from the Amazon Series | October 15, 2021 | 56:44 | Drum, Lace & Ian Hultquist | Madison Gate Records |
In 1998, a paperback release of the screenplay for I Still Know What You Did Last Summer was published by Pocket Books.[ISBN missing]
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