Did you even see the movie?

Rating: Null/10 (12 May 2003)

"Where does Collosus (sp?) take the mutant children when the school is under attack? Why does Cyclops attack Jean Grey so violently and suddenly? Why is Rogue flying the plane at the end and why is she so upset? And why is Wolverine's past STILL a mystery at the end?"
I will answer all of your questions because evidently you weren't watching the movie:
1. Colossus takes the children out the back way into the woods. It's actually shown where in the movie.
2. Cyclops attacks Jean because stryker controls him with the chemical he burns into the back of their necks, just like magneto, nightcrawler and the female version of wolverine.
3. Rogue is flying the jet because nobody else is on board to fly it, and the dam is bursting, which would kill everyone in the path of the flood. She is upset because she doesn't know how to fly the jet and feels lucky to be alive after almost crashing it.
4. Wolverine's past is still a mystery because he can't remember anything beyond the experiments done on him, probably because of the massive physical and psychological trauma of having to go through that. And also probably because Stryker was trying to get him to cut him loose, so blackmailed him for any further information. And also probably to set it up for another x-men movie.
Did you even watch the movie? I mean, it doesn't take a rocket scientist to figure most of it out. Maybe you should just stick to the comic books ;)