We've seen Cameron rockin' a few different hairstyles [1] on the set of My Sister's Keeper [2], but yesterday she really wowed us with a bald cap. In the movie, Cameron's daughter is diagnosed with cancer, so we're thinking that her character shaved off her own hair to rally around her daughter — although this is a new twist on the story since it didn't happen in the book. We're pretty surprised that the film's execs asked Dakota Fanning to actually shave her head [3] when she was originally signed on for the role, but it doesn't look like they held Cameron to the same standard.

[3]

More photos including Abigail Breslin, Sofia Vassilieva, and Jason Patric, so just .

Flynet [4]