Turnè (1990)

Dario (Diego Abatantuono) is a lively, loyal friend, and a good trouper who can recover cheerfully from even the worst onstage disasters. He needs to be, because he is constantly onstage with his best friend Federico (Fabrizio Bentivoglio), who is a barely adequate actor. In everyday life, Federico somewhat timid and unassertive. It's too bad that Dario is having an affair with Federico's wife, but in every other regard, Dario works hard to look after his friend while they are on tour together, playing shows in one small town after another. When Federico discovers the ruse, at first he is hurt, but in the end, both men have become disgusted with Federico's wife's inability to choose between them. ~ Clarke Fountain, Rovi