Deserves its reputation as a classic

Rating: 9/10 (22 August 2012)

After the special posse of experts is finally formed and is pursuing them too well, Butch Cassidy (Paul Newman) and the Sundance Kid (Robert Redford) move their bank robbing business to South America accompanied by the Kid's girlfriend, Etta (Katharine Ross).
This was the breakout role for Robert Redford's movie career (Redford named the "Sundance Institute" and the annual "Sundance Film Festival" that he founded in honor of this effect). While some respected critics, e.g., Roger Ebert & many others (see the 50% ratings of 'rotten' by 'top critics' reviews of this film on "Rotten Tomatoes") regard this movie as overdone or only "so-so," or "not western enough," most viewers find it still greatly entertaining and interesting.
I agree with the majority: it remains remarkably fresh and fun. There's so much clever banter throughout between the two stars, it borders on comedy (so much we become oblivious to the scores of people we see killed during the story's unfolding). Its Oscar winning screenplay very much draws on actual people and events (but please see Wikipedia's article on Butch Cassidy for how closely the movie mirrors reality). The actual lives and activities of Butch & the Sundance Kid are almost over the top--and so is this movie, too.