Lon Chaney was one of the greats of silent cinema.
A master of disguise, he would go to extreme (and – for him – extremely painful) lengths to transform himself into The Hunchback Of Notre Dame and The Phantom Of The Opera, amongst other horror movie icons.
Still, he was perhaps an unusual subject for a 1950s biopic. More unusual still, he was played by tough guy James Cagney. I’ve never seen the resultant movie, but it got decent reviews and a Best Screenplay Oscar nomination.
This is the original Belgian poster. It can be found for sale here.