That was over 14 years ago in 2006.
Today he is 50, and has starred in 82 movies in total, 42 since The Good Shepherd was released.
In The Good Shepherd, I think Matt Damon looks:
The Good Shepherd scores 6.3 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.