New 'I Know What You Did' Premieres July 18

The slasher franchise 'I Know What You Did Last Summer' returns with its fourth film, premiering in Los Angeles ahead of its UK and US release on July 18, 2025. Original stars Jennifer Love Hewitt and Freddie Prinze Jr. reprise their roles, joined by new cast members Madelyn Cline, Chase Sui Wonders, Sarah Pidgeon, Jonah Hauer-King, and Tyriq Withers. The plot follows a group of friends haunted after concealing a deadly accident, echoing the storyline of the 1997 original, with legacy characters drawn back into the action. The Los Angeles premiere featured both original and new cast members in designer outfits, underscoring the film's nostalgic appeal. Sarah Michelle Gellar made a rare appearance with Prinze Jr., marking a reunion for the couple who met during the original film. This new installment comes after several attempted reboots and a short-lived TV series.