Chris Webster was 14 in About a Boy when he played the character 'Ellie's Friend'.
That was over 22 years ago in 2002.
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 2 movies in total, 1 of those since About a Boy was released.
In About a Boy, I think Chris Webster looks: