CHRIS PRATT WENT FROM FATBOY TO A 'GUARDIAN OF THE GALAXY' IN 6 MONTHS!

Sometimes "getting into character" means a certain level of body modification. Whether it's slimming down, bulking up, or something more painful, Hollywood's finest will go the distance. Anna Faris' husband practically looked like a different person even six months before filming for The Guardians of the Galaxy. "Three or four hours a day of just consistent, ass-kicking hard work," the 35-year-old actor told Men's Fitness. Pratt's workouts included P90X, running, swimming, boxing, and kickboxing, and he even completed a triathlon. With the help of a personal trainer and nutritionist, the actor increased his caloric intake to 4,000 calories a day and drank tons of water. "I was peeing all day long, every day. That part was a nightmare," said Pratt. But the actor was happy to learn he could still eat on the intense weight-loss program. "I actually lost weight by eating more food, but eating the right food, eating healthy foods, and so when I was done with the movie my body hadn't been in starvation mode," Pratt told People magazine.