When Marlene Dietrich makes her entrance in Alfred Hitchcock's Stage Fright, the Dior dress she wears immediately draws the viewer's attention--not because of its designer label, but owing to the dramatic blood stains ruining its stylish surface. Fashion in film goes far beyond glamorous costumes on glamorous stars, as Jonathan Faiers proves in Dressing Dangerously, a pioneering study of the "cinematic negative wardrobe" revealed in mainstream movies. The book emphasizes how problematic, even shocking depictions of dress, until now largely overlooked, play pivotal roles in...