How an actress plays a one-armed surfer

AnnaSophia Robb films Soul Surfer, the story of Hawaiian surfer Bethany Hamilton, who lost her left arm to a shark in 2003, and the question of what she'll do with her own left arm short of tying it behind her back is answered in these shots, which reveal she's wearing a green sleeve that will allow the arm to be "removed" digitally during post-production through chroma keying, greenscreen and matte techniques (below a prosthetic "stump" where the arm will end).