Interesting Salon article: Marilyn Monroe, babysitter.
Here is Marilyn in Clifford Odet's "Clash by Night" - Odets was primarily a playwright best known for WAITING FOR LEFTY, and his plays dealt mostly with working class people as in this movie. Marilyn's part in this is definitely not typical. It's a minor role, Barbara Stanwyck is the female lead, but somebody on Youtube very kindly created a video that shows all Marilyn's scenes from "Clash by Night."
When asked by Edward R. Murrow about her roles, Monroe mentions "Asphalt Jungle" as one of her best parts. Here she is acting the shit out of her role in this clip:
Another interesting artifact of Monroe-belia is this 1963 documentary, narrated by Mike Wallace. And it ends with an especially good passage:
...she also left us warmth and wistfulness. And the knowledge of her vulnerability makes each one of us, perhaps, less lonely.
Boy if I can get that sentiment across in my play (which I may also turn into a screenplay) I will be very happy.