Rose Byrne plays a mother in the midst of a breakdown in the experiential psychological thriller “If I Had Legs I’d Kick You.”

"If I Had Legs I'd Kick You" premiered at Sundance 2025. The brutal film, starring Rose Byrne, features Conan O'Brien shifting into a dramatic role.

Conan O’Brien, the beloved late night show host, has officially made his acting debut in If I Had Legs I’d Kick You, an oppressive drama that made waves at the 2025 Sundance Film Festival last Friday (January 24).

Conan O’Brien, A$AP Rocky, and Danielle Macdonald co-star in Mary Bronstein’s audacious anxiety nightmare.

Mary Bronstein's 'If I Had Legs I'd Kick You' wowed the Sundance Film Festival with an all-time Rose Byrne performance.

What will surely go down as one the most stressful movies of the year is “If I Had Legs I’d Kick You,” which premiered Friday at the Sundance Film Festival.

Sundance: Rose Byrne and Conan O'Brien star in Mary Bronstein's surreal freak-out of a movie about the anxieties of contemporary motherhood.

Recommended Videos Byrne plays Linda ... Part of Linda’s story involves her therapist, played by Conan O’Brien, who joked that he didn’t realize he was in a movie. “I’m not looking ...

PARK CITY, Utah – Rose Byrne plays a mother in the midst ... Part of Linda’s story involves her therapist, played by Conan O’Brien, who joked that he didn’t realize he was in a movie.

Rose Byrne attends the premiere of "If I Had Legs I'd Kick You" during the Sundance Film Festival on Friday, Jan. 24, 2025, at Library Theatre in Park City, Utah. (AP Photo/Chris Pizzello)

Conan O'Brien, from left, Mary Bronstein, and Rose Byrne attend the premiere of "If I Had Legs I'd Kick You" during the Sundance Film Festival on Friday, Jan. 24, 2025, at Library Theatre in Park ...

Conan O’Brien, Danielle Macdonald and A$AP Rocky also star in Mary Bronstein’s feverish dark comedy thriller about parenting in extremis and existential black holes.