Continuity: When the German NCO begins to walk up the sand dune he has a stick grenade in his right boot. Next shot half way up the dune, the grenade has changed boots.

Continuity: At the concentration camp, Mark Hamill opens an incinerator door, several doors along the row, and repeatedly shoots the German hiding inside. As we are looking out from inside the incinerator Lee Marvin appears behind him and says "I think you got him". The shot changes to a wide view outside but they are now looking in a different door - one of the first ones in the row.

Continuity: During all the major battle scenes involving tanks the Germans are using American Sherman tanks as their own.

Continuity: In the opening scenes of the film, Lee Marvin's character is speaking with an officer, who is shaving, in an underground bunker. As the scene switches from close-ups of the officer to pulled back shots, the shaving cream on the officer's upper lip appears and disappears.

Factual error: At the very start of the film, as the Sergeant stabs a German soldier in the Great War, you get a good view of his "modern" rubber soled boots.