If you watched F for Fake on DVD, then you might have seen this on the extras.
Orson Welles: One Man Band is an essay style documentary, composed of archival film footage shot by Orson Welles as well as interviews of him on film. Also composed of original footage shot by the directors of One Man Band, Vassili Silovic and Oja Kodar. Oja Kodar was Orson's girl friend and artistic partner in his latter years. You seen her in F is for Fake.
One Man Band gave me a deep insight into Orson Welles, especially the latter part of his life when he was known by some as that, 'crazy old Welles who couldn't complete a project'. We see that in actuality Welles was very productive in his latter years. He never stopped making films...working on projects simultaneously only to have his financial backing disappear, leaving his works unfinished.
A special treat for the viewer is scenes from some of these uncompleted projects such as:
The Magic Show, Vienna, The Merchant of Venice, Moby Dick, The Deep, The Other Side of the Wind, The Dreamers and Swinging London (Orson plays multiple characters and is hilarious)
A must watch for Orson fans.
(note: any reviews including this one, are written by me. If I quote an outside source I will set it off in italics with quotes.)