William Finley’s portrayal of the central character and Paul Williams’ depiction of the deceptive record producer "Swan" are both delightfully over-the-top in this adaptation of Gaston Leroux’s novel. “Finley” is engaged in composing a cantata, portions of which are overheard by the dishonest "Swan," who enlists the help of his associate "Philbin" (George Memmoli) to steal the musical score. Soon after, auditions beg…