The actress, who landed the role of Catwoman, is proving to be pretty lethal with her character's weapons.
She's already managed to jam the butt of a gun into the eye of a stuntman - giving him a whopping shiner and a splitting headache.
A source said: "Anne got a bit carried away during a fight scene and mistakenly shoved the butt of the gun right into the actor's eye socket.
"He came away with a massive black eye - Anne was mortified."
Catwoman should stick to scratching.
The star was so upset about the injury she bought the man a silver pen to apologise. Engraved on it was: "Remember no one packs a punch like Anne."
A source added: "It was all in good humor but the poor guy took quite a pummeling."
The film has only been in production a few weeks but the cast, including Christian Bale as Batman and Tom Hardy as villain Bane, are already getting on like a house on fire.
Director Christopher Nolan must be pleased - as long as Anne is kept under control.
At least she didn't breathe on him after eating a tin of Whiskas.