Why Mark Ruffalo Stopped Being Friends With Jennifer Garner

When Mark Ruffalo appeared with Keira Knightley on Watch What Happens Live Thursday night to promote their upcoming film Begin Again, a viewer asked about his friendship with another leading lady: Jennifer Garner, his co-star in the 2004 movie 13 going on 30.

“We had a great time together, and I think we would,” Ruffalo said, “But then Ben came on the scene, and that was the end of that.”