That was over 47 years ago in 1973.
Today he is 83, and has starred in 84 movies in total, 67 since The Sting was released.
In The Sting, I think Robert Redford looks:
The Sting scores 7.9 out of 10 on The Movie Database.
Robert Redford's first acting role was as 'Chuck' in The Iceman Cometh, released in 1960 when he was 24.