Frankenstein is a 1931 American horror film starring Colin Clive, Mae Clarke, John Boles, and Boris Karloff, and directed by James Whale. The first of Universal Pictures Frankenstein movies, the film is a very loose adaptation of English writer Mary Shelley's 1819 novel Frankenstein or the Modern Prometheus. Clive plays the scientist Dr. Henry Frankenstein, who builds a creature from the parts of dead bodies, and successfully brings it to life, but is unable to control the strong, simpleminded creation.
While it was not the first time the novel was filmed (there had been a few silent short films of Frankenstein in the 1910s and '20s), the 1931 version is certainly the most famous version, and remains an influential horror film in its own right.
The first Frankenstein sequel was Bride of Frankenstein (1935).