Ben Affleck was 7 in The Dark End of the Street when he played the character 'Tommy'.
That was over 42 years ago in 1981.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 50, and has starred in 91 movies in total, 84 of those since The Dark End of the Street was released.
In The Dark End of the Street, I think Ben Affleck looks: