Marwan Kenzari was 24 in Katia's Sister when he played the character 'Giac'.
That was over 16 years ago in 2008.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 41, and has starred in 26 movies in total, 23 of those since Katia's Sister was released.
In Katia's Sister, I think Marwan Kenzari looks: