Before the fame and accolades, it was just Ben Affleck, Matt Damon and a friendship.
The actors met when their parents introduced them as kids in the early 1980s. They lived just two blocks away and went to school together.
In a 2007 interview with Parade, Affleck said they initially bonded over their love of acting.
"As a teenager, the natural thing is to have friends who have common interests and so you fit together seamlessly," he said.
"Before Matt, I was by myself. Acting was a solo activity where I’d just goof off and do something, act in a little TV show or something, and no one understood it. None of the other kids knew what it was I did, how it worked, or anything.
"All of a sudden I had this friend, Matt, and he gets it and wants to do it and thinks it’s interesting and wants to talk about it. Soon both of us are doing it."
Watch: Celebs who schooled together. Post continues after video.
While Affleck began acting as a child when his mother's friend — a casting director — hired him, Damon's mother thought it was "child abuse" to put a child on the stage or in front of a camera.