Anachronisms: At the start of the movie the date is given as 16 December 1944, the day that the German Ardennes Counter-Offensive (aka The Battle of the Bulge) began. When Hart crashes his jeep as he speeds away from the MPs, he ends up in a gully with a large number of dead American soldiers. A road sign seen earlier in the scene indicates that this is supposed to be the men from the infamous Malmedy Massacre. Those murders of POW's didn't happen until 17 December 1944, the day after the battle began.
more