British director Peter Glenville was then brought in (it was he who cast Peter O'Toole as Cervantes and Quixote), but he was also fired when it was learned that he planned to eliminate most of the play's songs from the film.
Peter Glenville, who cast Peter O'Toole as Cervantes and Quixote in a film adaptation of the play, was fired after plans were made to remove most of the musical numbers from the movie.