Continuity mistake: In the scene where Ryan transforms into a wolf, as he is thrown across the table, the sword is knocked onto the floor. In the next shot the sword can be seen back on the table, before it returns to the floor.
Factual error: The British infantry has sections of eight men (1 corporal, 1 lance-corporal, 6 privates), not squads of six men (1 sergeant, 1 corporal, 4 privates).