All-star musical follows Steve Martin,as a womanizing sheet-music salesman who's married to hapless Jessica Harper,but carries on an affair with a schoolteacher, Tony-winner Bernadette Peters. Set during the Depression, it features lyp-synced songs from the greats of that era, including Bing Crosby and Fred Astaire. Also stars Oscar-winner Christopher Walken. Produced and directed by Oscar-nominee Herbert Ross, with stunning black and white cinematography by Oscar-nominee Gordon Willis.