That was over 19 years ago in 2002.
Today he is 48, and has starred in 71 movies in total, 41 since The Sum of All Fears was released.
In The Sum of All Fears, I think Ben Affleck looks:
The Sum of All Fears scores 5.9 out of 10 on The Movie Database.
Ben Affleck's first acting role was as 'Tommy' in The Dark End of the Street, released in 1981 when he was 8.