In the 16th century, poet, playwright and part-time actor Miguel de Cervantes has been arrested, together with his manservant, by the Spanish Inquisition. They're accused of presenting an entertainment offensive to the Inquisition. Inside the huge dungeon into which they have been cast, the other inmates gang up on Cervantes and his manservant, staging a mock trial, with the intention of stealing or burning his possessions. Cervantes wishes to desperately save a manuscript he carries with him and stages, with costumes, makeup, and the participation of the other prisoners, an unusual defense—the story of Don Quixote.
Man of La Mancha is a 1972 film adaptation of the Broadway musical Man of La Mancha by Dale Wasserman, with music by Mitch Leigh and lyrics by Joe Darion. The musical was suggested by the classic novel Don Quixote by Miguel de Cervantes, but more directly based on Wasserman's 1959 non-musical television play I, Don Quixote, which combines a semi-fictional episode from the life of Cervantes with scenes from his novel.
