The neon sign outside BATES gas station appears to be same neon (identical font) used for the motel in Alfred Hitchcock's साइको (1960), produced at the same studio.
Director Michael Gordon had a superstition that made him put at least one of his favorite paintings by Edgar O. Kiechle into each film he directed. While one was being placed on the wall behind Kirk Douglas, Douglas quipped, "I've worked with a lot of tough directors, but he's the first one who ever insisted on holding something over an actor's head".