Young Frankenstein (1974)

A parody of Frankenstein and Bride of Frankenstein, Frederick, the grandson of the famous mad scientist, inherits his estate and continues his experiments. Instead of building a new creature with a “genius” brain, however, he accidentally uses an “abnormal” one. The monster gets loose several times, and eventually falls in love with Frederick’s wife, Elizabeth, who loves him in return. They live happily ever after.