The 60s musical bomb Man of La Mancha starring Peter O'Toole. Though it was justly criticized for its ponderous approach and Sophia Loren's non-singing, the material touched me when I was a kid in college. And I saw it on black and white TV as a late night movie. Peter O'Toole still makes a grand case as an idealistic knight fighting a lost cause - and the ending, when Cervantes goes up the Inquisition facing potential torture and execution amidst the cast singing "My Impossible Dream", personally for me it redeems a lot of the rough edges.