Saw this last night and thought it was fantastic. Very clever the different ways it uses sound (or lack of) and its unbearably tense at times. Great performances and characters you care about.
Be warned though, silence is unsurprisingly really important to the atmosphere so I was getting pretty annoyed by some of the ignorant morons in the screening I was at. It might be better to watch at home.
Cant recommend the film highly enough though.
