I know this isn't Star Wars related, but it's really bothering me so I want to share it with as many people as I can.
This past summer I saw several movies one of them being G.I. Joe: The Rise of Cobra. It was highly enjoyable with spectacular effects, but there was just one scene that ruined it for me. It was near the end when they are all in the underwater station and McCullen blows up the ice pack. Now I'm sitting there wondering why everyone is freaking about the ice blowing up, and then much to my astonishment the ice chunks begin to sink and crush the station. It certainly was a cool looking sequence, but people! Ice does not sink! It really just can't! And blowing it up wouldn't change that. It baffles my mind how they could have allowed this to happen. Surely, one of the hundreds of people working on this film would have realized this mistake at some point! I love spaceships and all sorts of improbable technology, but when a film maker disregards the laws of physics like this, I'm going to have a little trouble with that. The only explanation I can see for this incident is that it wasn't actually ice, but then how was it floating in the first place?
Why did they have to ruin a fairly good movie like that? There are plenty of other ways that the station could have been destroyed.
There were a few other moments that I didn't like either, but the problem there is more about purpose such as the very opening scene with McCullen's ancestor. I didn't really understand why it was important to the movie, but that is not as bad as blatantly defying the laws of physics and common knowledge!