Richard Fleischer's biopic about the eponymous Argentinian revolutionary has been widely known as one of the biggest embarrassments in cinema history. Watching "Che!", I didn't interpret it as a particularly bad movie. What it is: extremely corny. As I understand it, the movie is historically accurate. It's just that, aside from all the overacting, Omar Sharif as Che Guevara looks silly and Jack Palance as Fidel Castro always looks as if he's about to fall asleep. In fact, Fidel adopts Che's comments as his own, just like Daffy Duck does with Porky Pig's suggestion in "Duck Dodgers in the 24 1/2 Century"! There has been news of Steven Soderbergh's upcoming biopic about Che Guevara, with Benicio Del Toro playing the role. It'll probably come out better than this one. This mostly functions as an example of a movie intended as serious coming out really funny. Worth seeing for that.
Also starring Cesare Danova (Mayor Carmine in "Animal House"), Woody Strode and Barbara Luna.