Omar Sy was 21 in Jamel Debbouze - Le très très bien de Jamel when he played the character 'Himself'.
That was over 24 years ago in 2000.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 46, and has starred in 73 movies in total, 68 of those since Jamel Debbouze - Le très très bien de Jamel was released.
In Jamel Debbouze - Le très très bien de Jamel, I think Omar Sy looks: