Moms’ night out just got a lot more fun!
Just as the film was about to start, Theron, 42, made a surprise entrance to introduce the movie.
“Go, mommies, go, mommies,” she said as she stood at the front of the theater in Los Angeles.
The crowd burst into applause as Theron walked out.
Theron and the cast, including Ron Livingston and Mackenzie Davis, attended a special showing of the film at a Moms’ Night Out Event in Arclight Culver City.
The actress also posted the surprise moment on her social media.
“Love a good surprise!” she captioned the video. “I know how tough it is for us parents to get a night out at the movies so I appreciate you all coming out to see #Tully!”
Tully tells the story of a mother named Marlo (Theron), who is gifted a night nanny by her brother (Mark Duplass.)
While initially skeptical about having help, Marlo eventually forms a unique bond with the “thoughtful, surprising, and sometimes challenging” young woman named Tully (Davis).
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“Marlo is a woman who tries her best to keep up with the demands of being an attentive mother, a loving wife, and maintaining at least some self-identity through it all,” Theron, 42, told PEOPLE of her character. “But at the end of the day, she’s human, and she drops the ball a little. Or a lot.”
Tully hits theaters May 4.