Revealing mistake: When Sgt. Troy throws the grenade at the Gestapo agents barricaded behind the table, it is thrown wide right, yet the pyrotechnic explosion is dead center of the table barricade.
Revealing mistake: It is obvious a dummy was used for the scene of the lighthouse keeper falling to his death.
Revealing mistake: As Sgt. Moffitt lays the unconscious General Lacaze on the bed, the unconscious General swings his left leg on to the bed.