Robert Downey Jr. and Tina Fey are in negotiations to lead the voice cast for DreamWorks Animation's superhero lark "
Master Mind." Ben Stiller is a producer on the movie through his Red Hour Films.
The satiric film, with a screenplay by Alan J. Schoolcraft and Brent Simons, concerns a brilliant superhero villain who loses his life's purpose when he accidentally kills his good-guy nemesis. DWA plans a Nov. 5, 2010, release (though the title might change).