The Dirty Dozen (1967)

Factual error: The raid on the chateau takes place during the evening before the D-Day landings, in Rennes in Brittany, almost exactly halfway between Cherbourg and the Normandy beaches - both thought highly likely to be the site of the Allied landings. On the evening before the landings - the night of the raid - the area was heavily bombed by the RAF and dummy parachutists and radar-jamming devices were dropped into key areas, many close to Rennes itself. One dummy parachute drop succeeded in drawing an entire German infantry regiment away from its position just six miles from the Normandy landing beaches! The Germans knew something was happening and the landings were imminent - they just didn't know exactly where they would happen. Given all of this it is absurd to think that so many high ranking German officers would be enjoying themselves in a glorified brothel. They would be with their units preparing a counterattack, or at the very least on their way back.

Col. Everett Dasher Breed: Reisman! Some people may consider you a first-class officer. But as far as I'm concerned, you're a disorganized, undisciplined clown. I'm gonna' make it my business to run you out of this Army.
Major John Reisman: I owe you an apology, colonel. I always thought that you were a cold, unimaginative, tight-lipped officer. But you're really quite emotional, aren't you?

Trivia: Notice how the only survivor (Bronson) isn't a "real" Criminal (rapist, murderer etc) but shot a soldier running off with the unit's medical supplies. The Hollywood Code of the time couldn't show criminals "getting away with it."

Question: What are the small tubes that are collected in Colonel Breed's H.Q.? General Warden seems to figure out who they are.