The Oscar winner has been sporting a cast on her arm while promoting the new animated film, in which she voices ghoulish mum Morticia Addams, and explains she's still recovering from an action movie injury.
"I tore the ligament off the bone...," she tells U.S. late-night host Jimmy Kimmel. "I messed up my elbow as well!"
During a recent sit down with "Good Morning America", Theron and her "The Addams Family" co-star Oscar Isaac joked about the injury, insisting she was performing the film's finger-snapping theme when she wrecked her wrist.
"That's how committed she was to the snapping," Isaac joked.