Director: Jeremy Jameson. Cast: Stewart Moss, Marianne McAndrew, Michael Pataki

A bat bites Dr John Beck during a spot of spelunking and he turns into a hideous bat person. Listed on IMDB as the 49th worst movie ever made, this is really awful but hilariously funny with bat-on-a-string special effects, reams of National Geographic stock footage and Moss doing the best waking-up-from-a-nightmare acting ever. Best dialogue: β€œIt took two strong men and a boy to get it on.”