GENTLEMEN PREFER BLONDES (1953): Monroe and Jane Russell as friends who go to Paris looking for mates. The film is charged by Hawks's stylish snap, a famous set piece or two (including Monroe descending that staircase while singing "Diamonds Are a Girl's Best Friend"), Russell's wit, and songs by Leo Robin and Jule Styne. THE SEVEN YEAR ITCH (1955): As a married man left alone during a hot summer, Tom Ewell shows off crack timing matched by Monroe's zesty comic flair, and the scene in which her white dress is blown skyward by a passing subway train has entered the encyclopedia of great movie images. NIAGARA (1953): Monroe is a full-fledged sex goddess, a scheming wife tormenting husband Joseph Cotten in their cabin by the falls. This Technicolor slice of pseudo-Hitchcock is a fun location picture with a genuinely exciting climax. RIVER OF NO RETURN (1954): Otto Preminger's has Monroe livened up by the presence of costar Robert Mitchum, in a strong outdoorsy Western that catches the two stars in appealing form. LET’S MAKE LOVE(1960) Marilyn Monroe and Yves Montand star in a witty musical about a billionaire and an off-Broadway actress. One number shines: "My Heart Belongs to Daddy." THE FINAL DAYS: Producer-director Patty Ivins chronicles Monroe's final, aborted feature film, Something's Got to Give, which was ultimately shut down after the star was dismissed from the production.