Shia LaBeouf was 10 in Monkey Business when he played the character 'Wyatt'.
That was over 26 years ago in 1998.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 37, and has starred in 51 movies in total, 48 of those since Monkey Business was released.
In Monkey Business, I think Shia LaBeouf looks: