You can also tell that the tank was a T-34 by looking at the tracks when they zoomed in up close for the scene where the sticky bomb explodes and disables the tank. I remember noticing that discrepancy when I first saw the film as I own 2 Tiger models and a T-34 model kit.
In the article:
Factual error: Most hilarious was the scene in which the german "Tiger" tank moved towards one house. The tank commander stood in the open hatch and gave orders. First: Never would a tank commander in heavy combat stand up in an open hatch.
Dunno about this one, tank commanders in WW2 frequently had to expose themselves in combat even when their own vehicle was under fire as the visibility in a buttoned up WW2 tank was extremely limited, not to mention it was the only way they could man the cuppola MG to deal with any enemy inf nearby lurking in ambush.
Also
Factual error: One American soldier shot into the sight slot on the front of the German "Tiger" tank. This slot was made of a particular glass called "Kinon", at least 15 centimeters thick, and it was almost impossible to break.
I think it would have been alot more accurate if that front opening slit wasn't open at all. If I remember correctly, that slit in front of the driver's seat was closed off by lowering the armoured 'lid' whenever the tank entered combat and the driver found his way around by peering through a forward looking periscope.