Wolf Blood, also known as Wolfblood: A Tale of the Forest, is an American silent 1925 werewolf film starring George Chesebro, who also co-directed it with B-serial veteran Bruce M. Mitchell. The film has been referenced in a number of books as being the first werewolf movie ever made. This however is erroneous; the first werewolf movie is The Werewolf, a film made in 1913. However that film is considered to be lost. Therefore, Wolf Blood could be called the earliest surviving werewolf film. Although this film is labeled as a horror, there is very little in the feature film to be qualified as a horror film. Instead the film focuses more on romance and archaic action rather than suspense and fear as we have seen in other horror films of the time. The film is said to have more in common with westerns and adventure films of the 1920s.This film's importance to the genre of horror comes more so from its historical importance rather than historical impact. Wolf Blood is available commercially as an extra on a DVD together with F.W. Murnau's The Haunted Castle.