
Originally Posted by
Lindy
Basic idea of the film.
[spoilers]Frank warns Donnie about him dying when the jet engine falls on him.
Donnie doesn't die.
Life goes on, all sorts of things happen, terrible things like the girl he happens to like dying and whatever, and him killing Frank.
In the end, he goes back in time, somehow, in that giant vortex, finds himself back in bed in the past.
Chooses to die in the crash, the jet engine being sent back in time from the plane which his family were on and would have died in the crash.
Thus by Donnie dying, he prevented all the terrible things he would have caused from happening, since he was messed up already, and saw what would happen, he decided the world would be a better place without him.[/spoilers]
That, my friends, is the story in a nutshell, no complicated junk or excess to it, [spoilers]there is no explanation to the time travel, the cellar door bit is just a sneaky excuse to work up to the scene where the girl Donnie likes dies.[/spoilers]