Continuity mistake: In the scene where the group is climbing the cliff, even when Mallory and Stavros reach the summit and kill the German soldier, there is hard rain. However, in the next shot when they throw the German soldier by the cliff, there is no rain and the sky is clear.
Continuity mistake: When one of the siege towers is rolled over the camera, you can see one of the pushers look for the camera and move to avoid it.
Continuity mistake: The trees outside the court windows (behind the Judges) change places.