"I Know What You Did Last Summer" Scores Over $5 Million on Opening Day in North America

I Know What You Did Last Summer North America Box Office Day 1 Update. (Photo Credit – koimoi.com)

The highly anticipated film, "I Know What You Did Last Summer," made its debut in North American theaters on Friday, July 19, 2025, pulling in a respectable $5.9 million on its opening day. This figure includes $2.2 million from Thursday previews. Despite facing stiff competition from major releases like "Superman" and "Jurassic World: Rebirth," the movie secured the #3 spot in the domestic box office charts.

The film, a continuation of the popular slasher franchise, sees the return of original stars Freddie Prinze Jr., Jennifer Love-Hewitt, Sarah Michelle Gellar, and Brandy, reprising their iconic roles.

While critics on Rotten Tomatoes gave the film a 38% rating, citing a reliance on nostalgia without a strong new hook, audiences responded more positively, with a 68% approval rating. CinemaScore also indicated a mixed reception from viewers, giving the movie a C+.

Industry analysts are projecting an opening weekend gross for "I Know What You Did Last Summer" to fall between $13 million and $16 million. This is in line with the performance of its predecessors; the original 1997 film opened to $15.8 million, and its sequel garnered $16.5 million on its debut weekend. A third, standalone sequel, "I'll Always Know What You Did Last Summer," was released directly to DVD.

The plot of the new installment centers on five friends who find themselves hunted by a mysterious killer one year after they covered up a car accident, leading them to uncover connections to the infamous 1997 Southport Massacre.

"I Know What You Did Last Summer" officially hit theaters on July 18.

This box office update was originally reported by Koimoi, a leading source for movie news, reviews, and entertainment industry insights.

Source: I Know What You Did Last Summer Box Office Update