Unnecessarily long and drawn out

Rating: 4/10 (12 February 2015)

I have never seen as many people walk out of a cinema as I did when I went to watch this - I would guess that a minimum of a third of the audience left!! It is ridiculously slow and about an hour too long. The drama is not drawn out at all and you just end up wishing that they'd get on with the storyline. Attempts to draw out the tension are basic and laughable, while the excellent cast are forced to use tortured facial expressions to give the film any semblance of feeling.
Overall an incredibly disappointing experience. I was expecting to love this, I ended up wanting to follow everyone else out of the cinema. Ridiculously poor, given the promising subject and excellent cast.