a Ruby Television production in association with AL Films for BBC, co-produced with WGBH Boston ; screenplay by Paula Milne and Sarah Williams ; produced by Joanna Anderson, Vicky Licorish, and Grainne Marmion ; directed by John Alexander
Warner Bros. Pictures Inc. present ; a Warner Bros. picture ; directed by William Dieterle ; screenplay by Norman Reilly Raine, Heinz Herald, Geza Herczeg ; story by Heinz Herald and Geza Herczeg
a Compton Production ; Michael Klinger and Tony Tenser present ; original screenplay by Roman Polanski and Gérard Brach ; produced by Gene Gutowski ; directed by Roman Polanski