In what may be a sign that we're all getting old, Matt Damon, who became a bona fide star 13 years ago with the release of 'Good Will Hunting,' turns 40 today.

To celebrate one of the most successful (and, in many ways, underrated) careers in Hollywood, we're taking a look back at some of Matt Damon's best movies, from little-seen gems like 'The Informant!' to the uber-popular 'Bourne' trilogy.

Check them out after the jump, then share your favorite Matt Damon movies in the comments.
categories Features, Hot Topic