I'm a fanatic about Orson Welles's 1962 THE TRIAL--a movie that I keep going back to year after year. While it has never gotten as much attention as some of his other films it is, for my money, one of The Great One's great achievements.
Welles had planned to make a documentary about the production--akin to the doc FILMING OTHELLO--and while it's a shame that he never got to complete the project, he did film a long Q&A at the University of Southern California following a viewing of the film.
The talk is marvelous stuff, with the big man holding forth on a variety of topics. He's as brilliant and slippery and maddening and wonderful as always.
You can watch the footage of his talk on Youtube thanks to "Citizen Welles". Check it out.