Between promoting "The Hunger Games" and managing his engagement to Miley Cyrus, it’s amazing that Hemsworth has had time to work out at all this year.
Luckily, it’s mostly maintenance at this point. To prepare for the box-office hit, the actor adopted a Navy SE AL-directed regimen supplemented with boxing
training to ultimately arrive on set an impressive 20 pounds lighter than when he first accepted the role. For "The Expendables 2", he did the exact opposite, packing on muscle to fit in among the gargantuan likes of Sylvester Stallone and Arnold Schwarzenegger. When he’s not shape-shifting between roles, the 22-year-old gets his kicks on his surfboard but still manages to make his way into the gym to lift weights three to four times a week.