Abbott and Costello's screen debut finds them as detectives cracking an insurance scam in "One Night in the Tropics" (1940); boot camp becomes a course in basic comedy training in the team's first starring film, "Buck Privates" (1941); the boys set sail for seafaring silliness in the service comedy "In the Navy" (1941); there are high spirits when the pair get trapped in a haunted house in "Hold That Ghost!" (1941); take off for laughs with the duo as would-be pilots in "Keep 'Em Flying" (1941); "Ride 'Em Cowboy" (1942) has them as city slickers-turned-comical cowhands; Chicago bus drivers Bud and Lou take a really wrong turn in "Pardon My Sarong" (1942); and, in "Who Done It?" (1942), they're private eyes "helping" the police catch a killer. 11 hrs. on four discs. Standard; Soundtrack: English Dolby Digital mono; Subtitles: French, Spanish.