but actually this actress is NOT Marilyn - if I remember the article correctly (I saw it on the web a couple of years ago) this was actually a different actress that resembled her. Apparently she made the film and someone later mis-identified her and added Marilyn's name to the credits at the beginning of the film. I think the article I read was in Playboy (yes, some of us actually DO read the articles). The actress was still alive and flattered that so many people had mistaken her for Marilyn. Apparently her real name was Arline Hunter - here's a site that discusses the film:
http://www.theeroticmuseum.com/collections/monroe/