A DAY AT THE RACES - It"s a prescription for laughter as the Marxes skewer the medical profession and bring home a racetrack winner. On your Marx for tootsie-frootsie ice cream, madcap medical exams, wallpaper wackiness and more. A NIGHT IN CASABLANCA - It’s the Nazis vs. the nutsies when the brotherly trio foils Axis criminal activity at a hotel swirling in intrigue and whirling with nonstop nonsense. ROOM SERVICE - Lucille Ball and Ann Miller co-star with the boys in a riotous romp about a cash-strapped theatrical troupe trying to nail down a backer for their new Broadway venture. AT THE CIRCUS - Big-top bedlam results in this 3-ring comedy caper in which Groucho sings the praises of Lydia the Tattooed Lady and Eve Arden slinks around the walls and ceiling as a shady acrobat.