WOW! Where to start? First, the idea that after a particular date the only bombers we put up were silver B-17Gs is wrong. We flew what we had. Squadrons only received replacements after losses or planes just getting worn out without replacement parts available. If a plane was Olive Drab, it stayed Olive Drab throughout it's useful life. You would be amazed at what a maintenance crew could do with parts from other aircraft.
Second, I definitely see B-17 G models in the photos of the trailers posted here.
Third, How did they do so much better filming Tora Tora Tora!, Battle of Britain, etc etc? They actually had more planes available. The other thing was many planes were "converted" from AT-6s to Zeros, and etc. Something one wouldn't do with the dwindling number of surviving aircraft and costs of today. In the Battle of Britain, Spain was actually still using HE-111s when the movie was filmed.
Fourth, The Movie Memphis Belle was in fact extremely inaccurate for the Belle's last flight. From what I have found, the things that happened to the Belle were straight out of Martin Caidin's Book "Flying Forts".
Lastly, The Movie "Red Tails" will focus on an important group of men who have been until lately, repeatedly overlooked when telling the story of the Air War in Europe. It is about making people aware that the history is out there, they can then read a more factual account on their own. Frankly, that is where History and entertainment intersect: when something like this move can pique your interest enough to make you want to learn more.
And besides, I really DO want to be entertained when I go to see this film.
TeeArr