Fessenden said Kurtzman agreed to do the film because he has a soft spot for werewolves .
Fessenden , who produced and had a cameo , brought on special effects artist Robert Kurtzman .
Fessenden said special effects artist agreed to do the film because Robert Kurtzman has a soft spot for werewolves .
Fessenden , who produced and had a cameo , brought on special effects artist Robert Kurtzman .