Justin Bartha was 24 in Gigli when he played the character 'Brian'.
That was over 21 years ago in 2003.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 45, and has starred in 24 movies in total, 23 of those since Gigli was released.
In Gigli, I think Justin Bartha looks: