good movie, but I felt cheated

Rating: Null/10 (10 July 2001)

just caught this movie last night, and it was as good as people made it out to be, great story, good acting, very tense, the director shows from the first minute (so i'm not giving anything away here)that's he's not scared to kill off a character, this left me with the whole 'will someone die next?, who's gonna die next?, or does he want us to think someone's gonna die, but noone actually will' very well done, *but* this is one of those movie that ends leaving you with more questions then answering you can read my rant about that beneath

*minor spoiler minor spoiler**minor spoiler*
the end of the movie left me feeling really cheated, not *one* question was answered as to when did this take place??, who was behind it??, why are they doing this??, what was reason for these people??, and how did they kidnap them all and get away with it???, it was like reading a brilliant murder mystery only to find that the book just finishes without telling you who the murder was, when he did the killings, why he did the killings, not even a hint is offered, the closest you get is worth's speech...it's crazy!.
*end minor spoiler*