Gold designed the posters for Casablanca, A Streetcar Named Desire, Alien, and thousands more. “Long before poster artists turned to photography and computer-generated images in the 1980s and ’90s, illustrators like Mr. Gold billboarded movies with freehand drawings, based on scripts and first screen prints, that hinted at plots and moods and mysteries, without giving away too much — priming audiences for love, betrayal, jealousy, murder.”