Best movie I've seen in a while, and best movie-going experience I've had in a while too. They were really strict about the 18+ age limit up here in Canada, they were yanking kids out who couldn't prove they were there with a guardian 15 minutes before it even started, and warning people that if their kids were causing any trouble they'd all be kicked out. No issues at all with cellphones, cameras, people talking loud, nothing.
Of course, anytime somebody lost a head, or got blown up, or something else totally awesome, the place would go wild with cheering. The funny thing is when people started yelling "RAMBO FOR PRESIDENT!" and "RAMBO FOR PRIME MINISTER!". Remember, this is in Canada, which prides itself on NOT being the US, and being less violent, and people were cheering everytime some badguy got absolutely gutted or had his head explode. It brought tears of joy to my eyes.
Overall, great movie, the last battle scene was by far the best I've seen in a long time and in a lot of movies. Stallone can keep making Rambo movies until he's in diapers as long as they're of this quality.
Edit:
Also, I had a question about the H&K preview. Did they seriously change the name and the whole movie? I thought it was H&K Go to Amsterdam, and it seems like they never actually get there, and now it's called H&K Escape from Guantanamo? Gotta be a joke, maybe I just didn't get it. Still looks funny though