Brandon T. Jackson was 16 in Ali when he played the character 'Club Goer (uncredited)'.
That was over 21 years ago in 2001.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 39, and has starred in 23 movies in total, 21 of those since Ali was released.
In Ali, I think Brandon T. Jackson looks: