Kaia Gerber and Lewis Pullman Star as Husband and Wife in Erotic Thriller 'Bulls'

Kaia Gerber and Lewis Pullman are bringing their off-screen relationship to the big screen, cast opposite each other as a married couple in the upcoming erotic thriller Bulls.

Dylan O'Brien headlines the film, a seductive thriller that will premiere at the Cannes Film Festival later this month. James Morosini, the director behind the SXSW crowd-pleaser I Love My Dad, is helming the project.

The story centers on Danny (O'Brien), a man who has spent three decades apologizing for his existence. Facing relationship troubles, he escapes to a hedonistic island resort in hopes of returning as someone his girlfriend can respect. His retreat takes a dangerous turn when he hooks up with Ava (Gerber), a married woman, drawing him into conflict with her commanding husband Marco (Pullman). As Danny gets pulled deeper into Ava's world of sex, power, and mind games, he discovers that getting caught by Marco is merely the first of many consequences, with escape proving costly and deadly.

"I wrote Bulls because it's the type of film I would cancel my plans to go see in cinemas," Morosini shared in a statement. "It's mischievous, twisty, turn-y, and most of all it's sexy."

The two stars have been publicly linked as a couple since January 2025. Gerber previously discussed her relationship during an appearance on Jake Shane's Therapuss podcast, marking her first public comments about dating Pullman.