Great movie 8/10
This was a great survival movie. Every time I sighed and dismissed something, it was soon explained with a logical plot devise. The actors were very good, their dialogue seemed fitting and not cliche. The threats were real and made you cringe when something went wrong.
All in all I give it an 8 out of 10. This is how survival movies should be done and not like that atrocious popcorn flick Gravity which only did well because of its "star" cast.