Dylan Sprouse was 5 in Big Daddy when he played the character 'Julian McGrath'.
That was over 25 years ago in 1999.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 31, and has starred in 29 movies in total, 27 of those since Big Daddy was released.
In Big Daddy, I think Dylan Sprouse looks: