Continuity mistake: After Pigeon 13 has committed suicide, we return to pigeon headquarters and the captain draws a white line over Pigeon 13's name, Homer Pigeon, on the blackboard. In the next shot, the line has disappeared.
Continuity mistake: At the flight station, when the captain addresses his men and says, "That's 28 men and 28 tries," the captain's ribbons, medals, and cap change colors. (00:03:15)