Continuity mistake: Big Joe gets out of his jeep, salutes Captain Maitland, and converses about the upcoming time off for the men. Behind Big Joe is one of his half tracks and he is on Maitland's right. The scene cuts and Maitland's "liberated" yacht is behind Big Joe and he is directly in front of Maitland. (00:25:00)
Factual error: During the scene where Clint Eastwood is trying to convince Don Rickles to join in the heist, there is a box of Almond Joy candy bars behind Don's head. They weren't introduced until 1946. (00:28:50)
Continuity mistake: When Kelly asks Little Joe for the brandy to interrogate the German officer, he is handed a square bottle with a short neck. In the next shot, as they sit down for their "friendly drink" Kelly sets down a round bottle with a long neck. (00:10:05)
Factual error: At the beginning of the film as the camera follows the security sergeant he taps a man on the shoulder. The man was standing next to the crossroads signs in a camouflage poncho. As he turns, you can see that he that he is wearing jeans and not a standard uniform of the era under the poncho. (00:00:35)
Continuity mistake: The scene where Crapgame is telling Oddball about Kelly being a former officer, Oddball is holding a gold bar in his hand. The front shot of Oddball has him holding the bar at a low angle with the tapered top of the bar facing upward, while the shots over Oddball's left shoulder shows him holding it higher with the wider base of the bar facing upwards, instead. (00:37:20)
Continuity mistake: In the scene when Kelly is shown the Oddball's tank for the very first time, the Sherman has a loudspeaker mounted on the right hand side of the turret. The loudspeaker is placed on the opposite side of the turret for the rest of the movie. Also as far as luggage and other external storage is concerned, this tank actually looks different in every scene. (00:32:50)
Revealing mistake: At the end of the scene with the destroyed bridge, when Oddball's Sherman drives away, Cowboy is nearly left behind and climbs onto the rear of the tank by standing on a box attached to the rear plating. The next time we see this tank from the rear, the box is gone. It was obviously there only to help Cowboy climb on. (01:29:00)
Continuity mistake: When Kelly comes to make a proposition to Mulligan, the sun is on Mulligan's back. When both are in the shot from Kelly's view, both are in the sunlight. Then at the, "I need an authorisation" reverse shot, they are both in the shade, these 2 scenes are obviously shot at two very different times. (00:21:30)
Continuity mistake: When the squad is crossing the cleared cornfield and encounters mines, each individual is forced to meticulously check with his knife and crawl individually to where he could follow Kelly's path. The cornfield surface all around is uniformly chewed up with moist dirt and lots of plant debris. However, when the German patrol shows up, the remaining soldiers escape along a well-worn, tamped path and the surrounding field looks dried out, smoother, and with much less plant debris. (01:12:00)
Continuity mistake: At the train station, just as the 3 Shermans turn to face behind the tunnel to fire at the building, they suddenly move a lot closer together. (01:02:40)
Continuity mistake: When Oddball is shooting up the rail yard, he aims at a building with the signs "Saint Server" and "2" on the outside of the buildings. In the first shot, the "2" is damaged at the bottom. In the second shot, just as it explodes the "2" is back to normal. Note the baseline. (01:01:50)
Continuity mistake: When Crapgame makes a phone call after speaking to Oddball, his grip on the receiver changes between shots. (00:37:40)
Continuity mistake: When Joe is talking to the Captain about having a guide for the town, the Captain's chin strap on his helmet is twisted or untwisted depending on the shot. (00:12:30)
Answer: It's a Yugoslav Soko 522 Ikarus.