Sad but true. The Iron Petticoat goes over like a lead balloon. This 1956 film features an unlikely duo for a romantic comedy: Katharine Hepburn and Bob Hope. These two major stars did different kinds of comedy. She was more Bringing Up Baby and Adam's Rib. Screwball and sophisticated comedies. He was more the gag-meister, never at a loss for a wisecrack in very funny "Road" movies with Bing Crosby and never above some broad vaudeville-like slapstick business in all his comedies. The Iron Petticoat is a curiosity piece. This 1950s Ninotchka knock-off is so clunky, so quirky that you just have to watch it at least once if you're a classic film fan. Katharine Hepburn plays Captain Vinka Kovelenko, a distinguished Soviet army pilot who defects. The thing is, Kate still sounds like she's doing The Philadelphia Story. Hope plays the American officer in London assigned to introduce the Communist to the joys of capitalism. Vinka defected to London because Russia kept making an issue of her womanhood. The feminist pilot wasn't getting equal respect from male superiors. The KGB wants Vinka back.