A conundrum wrapped in an enigma. That's what The Stunt Man is like. Cameron (Steve Railsback) is on the run from the police. He's able to elude them, only to find himself caught up in the middle of a World War I film shoot. Due to a misunderstanding he causes the death of one of the film's stunt men and stumbles away unnoticed, only to encounter the shoot at a different location. The director, Eli Cross (O'Toole) notices him and is able to put two and two together, discovering that he's on the lamb, and he was the cause of the accident earlier. He offers Cameron a job as stuntman to replace the man who has just died, then proceeds to torment and toy with his new protege mercilessly.
This film is available on DVD, though it seems to be out of print, so copies are a bit pricey. The trailer for it is above, uploaded to YouTube by FanOfMovies123. The poster above is featured at The Imp Awards.