This one confuses me greatly and downright irks me. It reminds me of the pathetic cover of a certain BBC-Austen miniseries in which the American packaging showcased 2 models instead of the actors because they were better looking than the actual stars. It's misleading and wrong! This particular poster tells the audience, "come watch this film because you'll see sexy Marilyn Monroe strut her stuff." Those poor lustful souls will only come away disappointed to have seen her in just 3 short scenes.
As I write this, I cannot help feeling like a hypocrite. I did come to find this film as a Monroe fan wanting to see more of her films. I liked the film for what it was and not necessarily for Monroe's role. Yet this title is often distributed as a Monroe film. I'm hoping that in a few years this will be known only as a very good film noir.
Let's ignore Marilyn Monroe scared face in the corner for a moment and look at the other elements of this image, which happens to be the DVD cover. This is quite good. In the background, you have the asphalt jungle and the tagline "The City Under the City" which is representative of both the underground scenes and the "underground" network of hoodlums. Then set below the city you have the 3 main people involved with the actual heist (versus those involved with only the planning of the heist); Sterling Hayden, the hoodlum, James Whitmore, the driver and Anthony Caruso, the box man ~ explosives. Then right below them you've got the sex, i.e. Monroe. Clever thing about this image, is that it's on a tilt symbolizing the impending downfall of these characters (except the sex, which survives of course).