Take a look at photos of famous pals -- including Ryan Gosling and Justin Timberlake, Connie Britton and Lauren Graham -- who were once roommates before making it big in Hollywood.
John Cusack and Jeremy Piven
The Chicago-area natives shared a pad and roles in many films (Cusack even studied at Piven's theater workshop) but the Entourage star later hinted they had a falling out. When asked by Best Life how Cusack handled his success, he said, "No comment. I mean, you could fill in the blank, I bet."