Mark Ruffalo Blames Ben Affleck for His Lost Friendship with Jennifer Garner (VIDEO)

Mark Ruffalo

At 13, Mark Ruffalo was too busy skateboarding to even think about the big screen. Now what would’ve seemed like a pipe dream is the 36-year-old’s life: He’s a movie star, acting alongside Jennifer Garner in 13 Going on 30 and even sharing the screen with Robert Redford (The Last Castle) and Jim Carrey (Eternal Sunshine of the Spotless Mind). But while Garner gets to skip the long trip to success in their new movie, Ruffalo, whose big break came in 2000’s You Can Count On Me, had to endure all the growing pains, including overcoming a brain tumor.