The insignia on the side of the amphibious aircraft is incorrect. The US quit using the red ball in the star in May 1942. The Black Sheep Squadron wasn't formed until August 1943, over a year after the insignia had been changed.
"Sergeant Carlos Harpenger" played by Scott Colomby is a Naval Aviation Pilot, or NAP. He is incorrectly wearing gold Naval Aviator wings. He should be wearing silver Naval Aviator Wings.