Trailer looks good to me. If your standard is 100% historical accuracy, you're probably eliminating the likelyhood you'll ever allow yourself to watch much of anything on TV or the movie screen again, ever, apart from a handful of documentaries.
Face it... the movie is there to tell a story to an audience that is composed 99% of people who know ZERO about WWII, it's aircraft, or the men who faught. Are they gonna get things wrong? Sure. Would it be just peachy if they got everything 100% correct? Sure.
Ultimately, does that really matter?
Well, if they were trying to pass the movie off as a 100% true, historically correct account of specific events, then Yeh, I'd say it would matter.
But they aren't.
So chill, and enjoy what looks to be a pretty awesome movie.
RedTails