Peter Cushing Hammer Horror movies are wild because it's always called something like The Hideous House of Blood Will Kill You and Peter Cushing plays a doctor in a sickeningly well-tailored three-piece suit and an even nicer coat, and he says things like "this creature is an entity of great evil" (pronounced ee-vil), and then Christopher Lee shows up in makeup and homoerotically chokes Cushing for a bit, and then the Female Character arrives and tenderly cradles Cushing's face in her hands in the aftermath like he's a precious wounded middle-aged baby bird even though nine times out of ten he's not even her love interest and her love interest instead is just Some Guy™ with the personality of stale supermarket brand bread. And then Cushing kills the monster in a creative kind of way, and later you read about the movie and it turns out that in the scene when Cushing's character is forced to drink blood, they used actual human blood. And it's no longer than ninety minutes long.
