Is Cameron Diaz playing Lt. Ilia in J.J. Abrams’ new Star Trek movie? Or trying out for the part of Moondragon in Marvel’s Avengers movie? No, she’s simply gone bald for New Line’s weepie drama My Sister’s Keeper. In the film, she plays the mother of a girl suffering from leukemia. And when her daughter suffers hair loss from chemotherapy, she shaves her own head in support.

Though I’m not sure if Diaz is actually shaved here or just wearing a bald cap, I’m hoping that either way little Dakota Fanning sees these photos (for more, head here). You may recall that the 14-year-old primadonna dropped out of the film because she didn’t want to shave her head. Well, Dakota, how’s it feel to be shown up by Cameron Diaz? I know, she’s hardly one to seem worried about her image (she’s brilliantly unattractive in Being John Malkovich), but still, no bad-skin paparazzi shots have made her look as frightening as this picture.

P.S. According to these additional shots from the set, your replacement, Sofia Vassilieva, doesn’t seem all that happy to be bald. But at least she’s going to get that sympathetic Oscar nomination.