Taylor Lautner, as good-guy werewolf Jacob, gets shirtless so often in the 'Twilight' series that it's become a joke, even within the film. "Doesn't he own a shirt?" asks a jealous Edward (Robert Pattinson) when Jacob casually shows off his pecs yet again. Hey, who's complaining? If your taste runs towards slightly more mature musculature, 2010 also gave us the incredibly buff bods of Bradley Cooper ('The A-Team') and Ben Affleck ('The Town').