The Curse of Frankenstein (1957)

  Ah, my old friend Queer Subtext!  I've missed you.  Content warning:  some gore (mostly just dismembered body parts), possibly a drowned puppy (it's fine in the next scene but old-timey movies straight DGAF about animal abuse)

Victor Frankenstein (Peter Cushing) tries to beat a murder rap by confessing to the local priest (Alex Gallier) that he had made a Creature (Christopher Lee) who was actually responsible for the killing.

This is one of the loosest adaptations I've seen.  It barely keeps the character names and basically throws two-thirds of the book out.  Also, incredibly gay.  Honestly, that's the best part of the movie.  Victor and his husband/best friend/tutor try to make their own "child" but quarrel when Victor insists on bringing his cousin Elizabeth (Hazel Court) as a beard.  If only Hammer Horror had the nerve to make that movie in 1957.  

Peter Cushing has never looked young.  The man was born 72-years-old.  Wild.  Christopher Lee is barely in this but he did his best.  Both men would go on to have long careers in horror, specifically with this studio, and make a number of pictures together, so it's worth watching just for that.  As a Frankenstein adaptation, it's not my favorite but it was really entertaining to watch.  It's streaming for free with ads on Tubi.