Movie Theater Ettiquette...or Lack Thereof

This last weekend my sister and I went to see a movie. One of the trailers for this movie was for the 6th Harry Potter that will be coming out in July. Both my sister and I are HUGE HP fans and we got so excited sitting right there in the theater. She leaned over to me and whispered, "We're totally going to the very first midnight showing!", and I--of course--agreed.
But for some reason I started thinking about it this week...and it occurred to me...WHY would I WANT to go opening night?...or even opening weekend for that matter!!! When Doug and I went to see The Dark Knight on opening weekend it was ridiculous! There were people talking in totally regular voices--and not even about the movie. There were people making noises with all of their food wrappers. And the absolute worst was that there were were 2 or 3 year-old children that were TERRIFIED by the movie, but their selfish parents wouldn't leave, so on top of all the other noises there were crying children and parents trying to keep them quiet (I could on and on and on about how much it upsets me that parents are stupid enough to take their children to a movie that they know full well is not appropriate for them--those poor little kids are probably gonna have nightmares for the next 10 years!)...anyway, the price of the ticket was 8 or 9 dollars, and all of the rude, thoughtless people made it SO not worth it!!!
Now another thing you should understand about me--and probably the reason I'm so offended by these other people in the theaters--is that I was raised to be considerate...in the extreme, and anyone who knows my mother will totally vouch for this. And when I say "extreme" I mean that I will get into the theater, and unwrap all of my food, break it up if I need to, and get everything ready so that I will be making no noise as I eat during the movie. And--just ask Doug--I will not talk to anyone after the trailers, except maybe to say, "Oh, yeah we saw "this" actor in "that"movie.
So now that I've rehashed all of that, the opening night of Harry Potter (a movie that is going to be fairly dark and intense) doesn't sound all that appealing; parents bringing their 2 and 3 year old children--who will be crying while Harry and Dumbledore are in the cave, all those crazy people that will be screaming (every time Harry or Ron or Hermione enter a scene) and dressed up, along with all the other dumb people will be talking and making noise with their food...I think I'd rather wait 'till the movie has been out for a week and then go on a Thursday afternoon!