The majority of people who post regularly on SS are knowledgeable anoraks (And that's not meant as a criticism either), and sadly that's the attitude that has been brought to bear on the film before it was even released.
Like Jock says, if it's a good film, it's a good film, if it's not, it's not, irregardless of the subject matter. From only having seen the trailer, there are a couple of things that made me cringe, and pulling the hood up on my anorak say "That's not right, I know because I was there". But does that really matter, think about all the other films you have seen: Where the hero dodges all 347 bullets fired at him by the bumbling incompetent baddies. The real world doesn't happen like that, but it would be a pretty crap film if the hero got killed in the first ten minutes. It's called artistic license, and is done for entertainment.
Any film that has it's subject matter in the past will not be entirely accurate, but the majority of people won't care, they just want to watch a good film. The only ones who will be standing on their soapbox shouting "Rubbish" will be the anoraks of that particular subject.. I have to admit, I'm looking forward to seeing the film, it'll be 90 minutes of entertainment about something I like, and that's better than the telly most nights of the week. If you want reality watch Big Brother