Marathon Man is a very disturbing thriller thanks to its dentistry scenes and makes its arrival on 4K Ultra HD by way of Kino Lorber. “Is it safe?” These three worlds would really elevate the film to the next level. Let me say that the dentistry scenes are very tortuous. It is certainly a very far cry from what we see in Little Shop of Horrors. I know that William Goldman wrote the book and…"Marathon Man: Disturbing Thriller Arrives on 4K Ultra HD"