The Oscar winner flaunted her new buzz cut in Hollywood on Monday.
The Monster star will portray Furiosa in Mad Max 4: Fury Road, which is slated to commence shooting this summer after a two-year delay.
Theron, who has been attached to the project since 2009, can't wait to team up with Tom Hardy on the set.
"It's been three years. It's time to skin this cat already," Contactmusic quoted her as telling US Weekly magazine.
"The original Mad Max created such a vivid world, so to go back and re-imagine it and re-play in that sandbox sounds like fun to me. Its a really challenging piece of material... I feel very lucky," she added.
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