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.
Ben Affleck and Matt Damon
The childhood pals lived together while writing their Oscar-winning flick Good Will Hunting. "We rented this house on the beach in Venice and 800 people came and stayed with us and got drunk," Affleck has said. "Then we ran out of money and had to get an apartment."