The Werewolf (1913 film)

The Werewolf 1913 is a silent film short that is considered the first werewolf film and the earliest film of the Universal Monsters series. It was directed by Henry MacRae, produced by Bison Film Company, and released by Universal Studios. The script is by Ruth Ann Baldwin, based on the short story The Werewolves 1898 by Henry Beaugrand. It is now considered a lost film, all prints supposedly having been destroyed in a 1924 fire at Universal Studios.

Source: Wikipedia