If you’ve already seen No Hard Feelings, there’s probably one scene you can’t get out of your head.

The coming-of-age comedy stars Jennifer Lawrence as Maddie, a 32-year-old bartender and Uber driver on the verge of financial collapse. When she finds an ad on Craigslist for a couple who an experienced woman to date their awkward 19-year-old son, Maddie proposes and begins courting the shy Percy.

In one scene, the two dine out and then go to the beach for nude bathing. While in the water, three teenagers steal their clothes. This is where we need to keep the defibrillator handy: Jennifer Lawrence, totally naked, comes out of the water and physically confronts the guys.

After seeing the film, many wondered if the actress used a body double or if it was really her. Lawrence answered the question in an interview with Variety: “Everyone in my life and my team is doing the right thing and going, ‘Are you sure? Are you sure? Are you sure?” she said. “I didn’t even have a second thought. It was hilarious to me.”

The actress revealed that the scene took one day to shoot after many rehearsals.