"The Wurdulak" was the last of the short films to be shot, with shooting commencing on either February 25 or 27. While filming, Karloff contracted pneumonia, which led to him having to rely on oxygen tanks after production ended. Bava was initially going to end the film on a shot of Jacqueline Pierreux's dead character. On the last day of filming, Billitteri suggested to not end the film on such a bleak image and told Bava to change it. Bava changed the ending to Boris Karloff's character of Gorka on horseback who cautions the audience to watch out for vampires. The camera then pans back revealing he is on a stuffed horse revealing the studio set and simulated effects.