That was over 47 years ago in 1974.
Today he is 73, and has starred in 29 movies in total, 28 since The Klansman was released.
In The Klansman, I think O.J. Simpson looks:
The Klansman scores 4.7 out of 10 on The Movie Database.
O.J. Simpson's first acting role was as 'Garth' in The Klansman, released in 1974 when he was 27.