The Gravy Train/The Dion Brothers (1974) - starring Stacy Keach and Frederic Forrest

[Jkingsmoney]

Co-written by Terrence Malick about a year after Badlands under a pseudonym and directed by Jack Starrett a year before he made Race With The Devil with Peter Fonda and Warren Oates, The Gravy Train (later rereleased under the title, The Dion Brothers) is an excellent comedic crime film in the Coen Brothers vein that has been growing a steady cult following in recent years (filmmakers such as Quentin Tarantino and David Gordon Green are even vocal fans of the film) despite the fact that it, as far as I can tell, has never had a physical release with the only copy circulating being a version taped off of Cinemax.
Does anyone know the story behind who owns the rights? It looks like a studio called Tomorrow Entertainment made it (they also put out the made-for-TV cult favorite Gargoyles in 1972), while Columbia distributed it.