That was over 4 years ago in 2017.
Today he is 50, and has starred in 82 movies in total, 5 since The Great Wall was released.
In The Great Wall, I think Matt Damon looks:
The Great Wall scores 5.8 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.