I Know What You Did Last Summer (2025 film)

I Know What You Did Last Summer is an upcoming American slasher film directed by Jennifer Kaytin Robinson, who co-wrote the screenplay with Sam Lansky after an initial draft with Leah McKendrick. It is the fourth film in the I Know What You Did Last Summer franchise, serving as a direct sequel to I Still Know What You Did Last Summer (1998). The film stars Madelyn Cline, Sarah Pidgeon, Tyriq Withers, Jonah Hauer-King and Chase Sui Wonders, with Jennifer Love Hewitt and Freddie Prinze Jr. reprising their roles as Julie James and Ray Bronson from the first two films.
Produced by Columbia Pictures, it is scheduled to be released by Sony Pictures Releasing in the United States on July 18, 2025.
In September 2014, Sony Pictures revealed plans to remake I Know What You Did Last Summer (1997), 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. Flanagan confirmed that his new iteration of the franchise would be a reboot and not include elements of Lois Duncan's 1973 novel nor of the 1997 feature film. The project was ultimately never made and was subsequently canceled.
Director Jennifer Kaytin Robinson and screenwriter Leah McKendrick came up with an idea for a new installment to the I Know What You Did Last Summer franchise and pitched it to Sony Pictures in the fourth quarter of 2022. The pitch successfully led to the film being put into early development in February 2023, with plans to have producer Neal H. Moritz and stars Jennifer Love Hewitt and Freddie Prinze Jr. return in their respective roles as Julie James and Ray Bronson from the original films. Some days later, Sarah Michelle Gellar told Entertainment Weekly that she had been approached to reprise her role as Helen Shivers from the first I Know What You Did Last Summer film, owing to her friendship with Robinson, but declined because her character had died in the original film.
The screenplay was written by Robinson and Sam Lansky after McKendrick wrote the initial script. In March 2024, McKendrick revealed that the influence of social media would factor into the film's plot. In July, it was confirmed that the film would continue the story from the second film I Still Know What You Did Last Summer (1998).
In March 2023, Prinze Jr. said in an interview that he had not received an offer to join the film, explaining "They just said that to get people excited. I haven't spoken to anyone at their company, my agents haven't received an offer from them whatsoever." He later stated that Original Film announced the sequel without him and Love signed on yet just to excite the fans and that he had met with Kaytin Robinson after the announcement to discuss his possible involvement. He said that the meeting left him impressed with her idea for the film but noted that he had not signed on to appear as there was no script and he had received no concrete offer. In December, Hewitt stated that she would definitely reprise her lead role.
In May 2024, it was reported that Prinze Jr. and Hewitt were expected to return. In July, Camila Mendes, Madelyn Cline, Sarah Pidgeon, Tyriq Withers and Jonah Hauer-King were negotiating roles in the film. In August, after previously expressing interest in reprising her role as Karla Wilson from the second film, Brandy Norwood confirmed she was in talks to do so after the studio reached out to her, though she was unsure on how exactly her character could return. By September, Mendes had exited the project due to her starring in Amazon MGM Studios' Masters of the Universe (2026), while Cline, Pidgeon, Withers, and King were confirmed to star. Later that month, Chase Sui Wonders joined the cast, and Prinze Jr. was confirmed as having been cast, with Hewitt still in negotiations to return. In October, Billy Campbell was added to the cast. The next month, Lola Tung, Nicholas Alexander Chavez, Austin Nichols and Gabbriette had joined the cast as well. In December, it was reported that Hewitt was officially set to return.
Production was ready in October 2024, with principal photography in progress that month in New South Wales, Australia, with Elisha Christian as cinematographer. Filming continued in Los Angeles in February and March 2025, and finished on March 13.
The film is scheduled to be released in the United States on July 18, 2025.