On IMDB.com one of Vanity's first film credits is in Jack London's Klondike Fever in 1980. I happened to come across a copy on video and watched it. OK where is Vanity in this film? Who is she playing, the invisible woman perhaps.

Her part may have been cut during final editing; she would still get credited on the film. Another possibility is that she's in the film but unrecognizeable e.g. disguised or made up to look like a particular character. What's the film about? Was it a Canadian production?