The movie was far from realistic regarding the last scene where a single Sherman takes out the entire German Army, if that was actually the ending scene. I haven't seen the movie myself, but I definitely don't want to pay money for it if it's nothing more than a "Fuck yeah, Murica!" film that would bring any patriotic American into tears.
@ Arclyte
German steel and engineering was simply better than anything the Americans put out. Why do you think the US had to send wave after wave of tanks to take out German tanks(Who had inferior numbers)? It's because the Germans had superior weapons and technology.
You are a fool to believe that. As reported by the US Army Ballistics Research Laboratory in 1954 the typical engagement of the 3rd and 4th armored against German tanks was 9 to 4. That's not even close to 5:1. With regards to engagements between shermans and panthers shermans were on the defense 19 times compared to the 5 times they were on the offense. I shouldn't have to explain why a sherman on the defense is a much more dangerous threat than one on the offense (hint: 40mm of unsloped armor offers no protection to 3" guns).
This is the real power of having more tanks than your enemies, not this 5:1 nonsense (and never in the war did the US have enough shermans for that to be a winning prospect). When you have to hoard tanks like precious metals for decisive offensives while your enemy can give every single infantry division their own battalion of tanks, it doesn't matter what your frontal armor is. You're going to be ambushed at every opportunity and almost always from the sides or rear.
As for the differences between German and American steel, it's as much about American designers attempting to protect the men inside from spalling rather than keeping the tank intact as anything else.