For the first half of the opening song, "Beans", Alvin has a bandage on his finger (left hand, middle finger). Halfway through the song, the bandage disappears.
In the scene where Sgt. McVay is checking for dust, he wipes his dirty fingers on Corwin's shirt, leaving a dirty smudge. On the next shot, Corwin's shirt is clean again.
You are supposed to "uncover" (take off your hat) when coming indoors.
The Lt. is supposed to hold his salute until the Captain returns it.
You don't just run into a room and wave your arm around.
Jerry Lewis's character gets it right when he holds his salute until it's returned.
But you don't salute some one until the look at you.
You don't render a hand salute indoors. And you don't render a hand salute to
an uncovered officer. He should have come to attention until he was put at ease.
During World War II you would not make first sgt.
in five years. You'd be lucky to make buck sgt. in
those days in five years. Without being in combat.
Dean Martin (Puccinelli) says he been
in Army fives when his overseas deployment is
canceled.