I've been noticing things like this for years, movie makers have always seemed to have their own version of reality or else they think we're all as ignorant as they are. While I'm willing to suspend disbelief to a certain extent some movies are really hard to swallow. I think that a lot of the authenticity in a film is in the small details, I'm willing to bet that the wardrobe person (if that's what they're called) either didn't know the difference between the two covers or thought the Army cover was better looking. Hollywood has been screwing up these things for years, and when I see them it detracts from the quality of the film I'm watching, occasionally to the point of not watching the rest of the movie. I feel that if a movie is about, or deals with real events, people or organizations then the details should also be real and correct.
Well if you've had the misfortune of listening to any of these Hollyweird nitwits you can tell that they feel they are on own private planet were reality is optional. The hell with if us "little people" think it's wrong they will be there to tell us we are the fools and they are right. Most of them need to be reeled in or shown the door (ah la Tom Cruise and Sony sending him packing)
I perfer actors like Al Pacino or Kevin Spacey, you never hear them telling the world there way is best, they make movies and shut up.
Little to no effort is put into plausible plots, attention to detail, and proper clothes or equipment in the proper era. If you watch films based in history be by all means know NOTHING about history or your just roll your eyes at what they are trying to pass of as quality work. I don't taking a few liberties for a better story but when you take so many it becomes comical then it's time to rethink what you are doing.
One would think that the geniuses in Hollyweird could look at any movie on IMDB and look at the goofs listed, and realise that you can fool some of the people some of the time but not all of the people all of the time (Thanks Abe for that one)