British International Pictures Limited presents ; by Dale Collins ; adapted and directed by Alfred Hitchcock ; scenario, Alma Reville, Val Valentine. The sorcerer's apprentice / teleplay by Robert Bloch from his story ; directed by Josef Leytes ; an Alfred Hitchcock production ; produced by Joan Harrison ; a Shamley production
Alliance Communications ; a Rafford Films Limited/Norstar Entertainment Inc./BBC Films/The Scottish Arts Council Lottery Fund production ; screenplay by Allan Scott ; produced by Allan Scott, Peter R. Simpson ; directed by Gillies MacKinnon
Gaumont Pictures, Diamond Entertainment Corporation, TGG Direct ; produced by Michael Balcon, Ivor Montagu ; screenplay by Charles Bennett, Ian Hay, Alma Reville ; directed by Alfred Hitchcock
Python (Monty) Pictures in association with Michael White presents ; written ... by Graham Chapman [and others] ; producer, Mark Forstater ; directed by Terry Gilliam & Terry Jones