"Who are those guys?". The quote that tells the tale of this great movie. Paul Newman and Robert Redford star as the title outlaws on the run from a posse.
Butch and Sundance, notorious, but often comically rob trains as the leaders of the "Hole In the Wall" gang. Katharine Ross plays well opposite Paul Newman.
It's difficult picking one scene or moment because this film is such a splendid, seamless piece of entertainment. It's simply great entertainment that should be viewed in its totality rather than piecemeal. This is a film driven by personality.
If you had to pick great scenes, then I guess the scene when they jump into the river, or the finale in the Bolivian bank, but just enjoy.