There is not one category in which I can rate this movie positively... but I'll try anyway.
Plot: Nope. Other posters have beaten this one to death.
Military accuracy: My ROTC friend kept screaming that the Special Forces guys were using the wrong guns. He also tells me that the Navy doesn't use F-16s. I'll take his word on all that. I was annoyed at the clumsy way in which the alleged elite troops crouch-walked towards the hostile gunmen near the airport. Also, the fact that a White House fund raiser was authorized to make decisions involving missile strikes on civilians rather bothered me.
Physical accuracy: This just totally lost me. The plane didn't depressurize, nor did oxygen masks deploy, when the window blew out (a good half hour after it was shot, mind you). The CGI plane kept pitching and yawing at angles that can't happen. The shooters would frequently aim at other things (like the floor), yet their targets would fall back, shot in places only a magic bullet could reach. The list goes on.
Acting: Ha. The generic terrorists, who spoke perfectly articulated English, were so boring in their desires that I often wondered why they were even bothering. The "scared passengers" were more annoyed than anything, which made their presence annoying to the viewers. And Mr. Shirtless Dean Cain Wannabe was just sad.
Fight sequences: Competent stage acting, better than some films I've seen, but in no way what you'd call "good."
Plane realities: All wrong. I like how the pilot was from the school of flying that teaches top speed landings, without wing flaps, and while pointing the nose down. The internal layout of the plane did not come close to matching the external CGI shell. The hurricane-sized storm they fly through takes all of a minute and a half to get through. The speed at which they are tracked on the map (using a transponder that was shut off) is ludicrously fast. And I'm sorry, but the ability to land a prop lane in an IMac flight simulator should not convey any skill to pilot a commercial jet.
Sequels: Okay, so this is the one area that I can say something good. There is no sequel to Air Marshal. However, there are other films in the American Heroes series to which Air Marshal belongs.
