The actress, 36, was photographed with a shaved head while carrying son Jackson, 6 months, in Beverly Hills, Calif., on Monday. Theron's new look is for her role as Furiosa in "Mad Max 4: Fury Road," her rep confirms to Us Weekly.
Theron was first attached to the film in 2009 (along with Tom Hardy, 34), but it was shelved after a series of production setbacks. "It's been three years: It's time to skin this cat already!" Theron told Us while promoting "Prometheus" in London on May 30. "I'm very excited about it."
"The original Mad Max created such a vivid world, so to go back and reimagine it and re-play in that sandbox sounds like fun to me," she continued. "It's a really challenging piece of material."