Continuity mistake: During the spitfire scenes over the channel, it's day light, however, when one of the ships was bombed and the soldiers jump over board, it's pitch black. Several cuts between these scenes each time show daylight in one and night in the other.
Other mistake: When Tommy walks down the stairs on the boat to be bombed, one of the soldiers in the top middle of the left side of the screen can be seen pretending to eat a sandwich by repeatedly snapping his teeth near the edge of the crust. (00:31:15)
Visible crew/equipment: Towards the end of the movie when Farrier is watching his airplane burning on the beach, a camera crane can be seen from a distance getting in the frame on the right side of the screen. (01:38:40)
Continuity mistake: At the start the damage to the wooden gates changes between shots. (00:02:10)
