Tanya's Island is an American fantasy film from 1980/1981, directed by Alfred Sole and starring Vanity as a woman caught in a love-triangle involving her aggressive boyfriend (Richard Sargent) and an amorous, blue-eyed man-ape.
Vanity made this film using the alias "D.D. Winters".
The ape-suit was created by Rick Baker and Rob Bottin, with special effects contributions from Steve Johnson.