That was over 11 years ago in 2010.
Today he is 50, and has starred in 82 movies in total, 30 since Green Zone was released.
In Green Zone, I think Matt Damon looks:
Green Zone scores 6.4 out of 10 on The Movie Database.
Matt Damon's first acting role was as 'Steamer' in Mystic Pizza, released in 1988 when he was 18.