That was over 6 years ago in 2015.
Today he is 45, and has starred in 42 movies in total, 5 since Southpaw was released.
In Southpaw, I think 50 Cent looks:
Southpaw scores 7.3 out of 10 on The Movie Database.
50 Cent's first acting role was as 'Himself' in Beef, released in 2003 when he was 28.