[Disc 1]. In Arsenic and old lace, a drama critic about to marry discovers insanity runs in his family. In A night at the opera, a New York scandal, a riot on a ship, and an evening of insanity in a concert hall are some of the problems resulting from Groucho's outrageous business schemes. The goal-- to bring Milan's finest opera stars to Manhattan. [Disc 2]. In The long, long trailer, newlyweds hit the honeymoon road with a 40-foot trailer in tow....