My god it is long.  And slow.  And long.  I don't think I've ever been to see a movie before when by the end I was thinking :

1) JUST GET TO THE END ALREADY.  Everyone die, I don't care, I just don't care, I will shoot them all myself, just let it be over.
2) no wait, that ending is as irritating as an ending could possibly be.
3) thank god that is over.
4) I would pay at least £50 to never watch that again, or to be let out of the cinema early if I should stray in.
5) (in retrospective shock) So many lingering shots of the backs of people's heads!
6) thank GOD that is over
7) the more I think about the ending, the more I hate it with the fire of a thousand suns