No pun intended - the movie that some may call a Cube knockoff (I wonder if there was something that inspired Cube back then?) ... and they are not completely wrong if you are honest with yourself. We wake up with the main character and we are as confused as she is. The initial surprise and really tight tension wear off though ... as time goes by.
While the movie seems to be able to add new nuggets (of information and otherwise), is it enough to keep you engaged towards the end? I would think that many will slowly lose interest ... it remains decent! And the ending may very well sway you to vote better than I did ... but is it really? The action is nice but sort of repeats itself towards the end - well no pun intended, right? Life is not a circle ... and we need to have an ending to things ... even if it means we have not moved forward ... at all!