I certainly wouldn't hold up 'Stir Crazy' as a comedy masterpiece, but there are scenes in it I remember after 18 years -- Richard Pryor and Gene Wilder's famous "We bad" entrance; Wilder spending a stretch in the hole, then being disappointed upon getting let out ("I was just beginning to find myself"); a bald, fearsome, gargantuan convict starting to sing in a soft, high, lovely voice.
While most are dramatic -- think of Paul Newman in "Cool Hand Luke" and Clint Eastwood in "Escape From Alcatraz" -- some of have been funny -- such as "Stir Crazy" (Gene Wilder, Richard Pryor) and "The Longest Yard" (Burt Reynolds) -- while others are nothing short of outstanding -- such as "Papillon" (Steve McQueen) and the incomparable "The Shawshank Redemption" (Tim Robbins, Morgan Freeman).