I Still Know What You Did Last Summer is a 1998 American slasher film and a sequel to the 1997 film I Know What You Did Last Summer. Directed by Danny Cannon, the film was written by Trey Callaway, and features characters originally created in Lois Duncan's 1973 novel I Know What You Did Last Summer. Jennifer Love Hewitt, Freddie Prinze, Jr. and Muse Watson reprise their roles, with Brandy, Mekhi Phifer, Jennifer Esposito, and Matthew Settle joining the cast. I Still Know What You Did Last Summer continues after the events of the first film.
Callaway's script was published in an edited "young adult" format, leaving in all descriptions of violence but omitting the harsher language. Filming took place in Mexico and California. I Still Know What You Did Last Summer was released to negative reviews, but was a box office success, grossing $84 million worldwide. It is the second installment of I Know What You Did Last Summer series and was followed by I'll Always Know What You Did Last Summer in 2006.