I Know What You Did Last Summer Sequel: Release Date, Cast & Everything We Know (2024)

The legendary late-'90s slasher series I Know What You Did Last Summer is returning for a legacy sequel, and it has already scared up exciting news and updates. Based on the eponymous novel by Lois Duncan, the 1997 slasher follows a group of young adults who are hunted by a hook-wielding killer out for revenge a year after they covered up an accidental murder. With its mix of classic slasher tropes and just a tinge of classic American folklore, I Know What You Did Last Summer had all the makings of a bona fide franchise.

Though critics were notoriously low on the film, it nevertheless proved to be a moneymaker, and earned profits that far exceeded its budget (via Box Office Mojo). That naturally led to a string of sequels across the 2000s which were of a generally declining quality. A short-lived TV series attempted to keep the '90s time capsule alive, but it seemed that I Know What You Did Last Summer didn't have the staying power. However, the classic '90s hidden gem has become something of a cult favorite, and a fourth movie is aiming to cash in on the legacy sequel trend of the 2020s.

I Know What You Did Last Summer Sequel Latest News

The Sequel's Place In The Canon Is Revealed

As things finally start to get rolling on the legacy sequel, the latest news confirms the latest I Know What You Did Last Summer movie's place in the canon. From the beginning, it was unclear if the new movie would be a soft reboot or if it would continue the story from previous films, and now director Jenn Kaytin Robinson has clarified. Responding to a tweet which claimed the new movie would ignore previous canon, Robinson flatly stated "it is definitely not? ISKWYDLS is cannon [sic]."

I Know What You Did Last Summer Sequel Release Date

The Slasher Series Returns In Summer 2025

Even with many important details about the legacy sequel still uncertain, a release date for the new I Know What You Did Last Summer movie has been revealed. Perhaps in an attempt to take on major sequels like Scream 7, the I Know What You Did Last Summer sequel is currently scheduled to premiere on July 18, 2025. With the film having the potential to be a bona fide blockbuster, it only makes sense to schedule the film during Hollywood's most profitable period of the year.

I Know What You Did Last Summer Sequel Cast

Will Any Original Stars Return?

Perhaps the most exciting part of the announcement of the I Know What You Did Last Summer sequel was that original stars Jennifer Love Hewitt and Freddie Prinze Jr. were in talks to reprise their roles as Julie and Ray. Though neither have officially signed on yet, both are still being circled. Prinze Jr. was clear that he is interested in returning, and that both sides of the negotiations have been open. I Still Know What You Did Last Summer star Brandy (Karla) has also expressed interest in returning, saying "I need them to give me a call."

Aside from returning stars, the cast of the I Know What You Did Last Summer sequel is already growing with the addition of several new stars. Though nothing is known about their roles yet, Camila Mendes, Madelyn Cline, Jonah Hauer-King,Sarah Pidgeon, and Tyriq Withers have all been cast. Since all the newcomers are younger actors, it stands to reason that they will play the new protagonists being terrorized by the Fisherman.

The known cast of I Know What You Did Last Summer includes:

Actor	I Know What You Did Last Summer Role
Camila Mendes	Unknown
Madelyn Cline	Unknown
Jonah Hauer-King	Unknown
Sarah Pidgeon	Unknown
Tyriq Withers	Unknown

I Know What You Did Last Summer Sequel Story

The Fisherman's Return

Almost nothing is known about what will happen in the new film, but the I Know What You Did Last Summer sequel could turn to the novel for inspiration. Despite drawing its title from Lois Duncan's book, the plot was quite different outside the framework of a group of young adults being stalked after their notorious cover-up. In the movie, their victim is a fisherman, while in the book it is a young boy.

The I Know What You Did Last Summer franchise includes:

Since the original series strayed so far from the book's plot, the legacy sequel could turn to Duncan once again for inspiration, and adapt it in a more straightforward manner. This would satisfy the desire to make it a legacy sequel instead of a reboot, and it would deliver the more down-to-earth and grounded tone that director Jennifer Kaytin Robinson is going for in the I Know What You Did Last Summer sequel.

I Know What You Did Last Summer (Legacy Sequel)

Not Yet Rated

Horror

Thriller

Announced in early 2023, I Know What You Did Last Summer is getting a new sequel from director Jennifer Kaytin Robinson and writer Lead McKendrick with Jennifer Love Hewitt. The film will be a direct sequel to the 1997 horror film, ignoring the subsequent sequels and starting a new timeline.

Director

Jennifer Kaytin Robinson

Distributor(s)

Sony Pictures Releasing

Writers

Leah McKendrick

Cast

Jennifer Love Hewitt

Franchise(s)

I Know What You Did Last Summer

prequel(s)

I Know What You Did Last Summer