This movie would have you believe that WWII started at Pearl Harbor! Nothing of what happened before seems to matter, the USA were not in it! So forget about WWII, this movie should be called: the USA in WWII, with an overview of what the lesser players did too.
Of course explaining WWII in that short duration would be a challenge, but in this case it seems to go for a lot of over simplification, the imagery is very gimmicky too and doesn't really add anything.
The "from space"perspective, is no more than a marketing trick, there isn't anything new there and it doesn't add to the comprehension more than moving maps etc... that we've had for decades.
Painful to watch if you know anything about the subject.