Ronen Rubinstein was 16 in Detachment when he played the character 'Gangsta'.
That was over 13 years ago in 2011.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 30, and has starred in 11 movies in total, 9 of those since Detachment was released.
In Detachment, I think Ronen Rubinstein looks: