Breakfast at Tiffany's (1961)

Holly Golightly's black Givenchy dress from the opening scene Difficulty: easy. Any long, sleeveless black column dress or a floor-length black skirt with a fitted black top will pass, as long as the back is plain and the line is sleek. The accessories make it Holly: a chunky multi-strand faux pearl necklace, long black opera gloves, oversized dark sunglasses, a small sparkly tiara pinned into a high bun. Carry a Danish pastry and a paper coffee cup and nobody needs to ask. If you only own a little black dress, it still works, since the film's black dresses made that silhouette famous too.