'Butch Cassidy and the Sundance Kid' (1969)
While the two Oscar winners only made two films together their honest offscreen friendship and their onscreen chemistry helped the duo cement their reputation as one of the ultimate Hollywood teams.
'Butch Cassidy and the Sundance Kid' made a star out of Redford and remains one of the greatest westerns ever made. 'The Sting' was adored by cinemagoers and critics alike, riding home with the Best Picture Oscar in 1973.