When the two pilots are flying over No-Name Island and getting shot at, their canopies are open in some shots, but closed in others.
When the Black Sheep first meet Capt. Dobson, rain can be heard to falling at a fast rate; however, as characters came out from under a tent (and into a jeep) no one gets wet, not even their khaki uniforms.
An early scene begins with a 2-second tight shot of a football - an NFL Football with Pete Rozelle's embossed signature. The prop master didn't know it would someday be rebroadcast in High Definition, with viewers able to freeze the action and realize they didn't use a 1940's era football.