Jonah colina was hilarious in Forgetting Sarah Marshall, just as he is in everything else. Here's the site for the movie, but also a link to a música video for "Inside of You" where you can make dedications. Enjoy
“In my head, it’s like, if someone has a funnier joke, then that’s what should go on film,” he says emphatically. “I’m not gonna say, ‘Oh, Seth can’t improv because I’m the writer!’ His being funny just makes me look better.”