Niagara is a noir-ish thriller of murder, lust, and mystery in which Marilyn turns in a damn fine acting job.

there's more on the movie here: http://www.imdb.com/title/tt0046126/?ref_=nv_sr_1

The poster itself is from the 1970s re-release of Niagara originally released in 1953, and it's in excellent condition, with no faults that I can spot. The image, of course, is glorious; a full length portrait of Marilyn, and damn near life size.

For a 1953 release of this poster you would need to double the price and add a zero, if in fact this version existed in 1953, so this is an opportunity for a classic image of a classic dame in a classic movie for very little dough.