http://www.comicbookresources.com/columns/?column=14 He worked on it for 8 months and had Marlene Dietrich cast as Catwoman, James Cagney as the Riddler and Basil Rathbone as the Joker. The movie was stopped because of a disagreement on who was to play Batman. Gregory Peck was picked by the movie to play Batman while Welles wanted to play him (as he was also writing and directing it). Very interesting to think about what could have been.