I was going to make a huge review on this movie. It's by Martin McDaugh, director of In Bruges, one of my favorite films. But since it was a bit underwhelming, and I can't put into specific detail why exactly (even though I have a general idea), I'll keep it short and save whoever reads this some time.

Albeit a good watch, nowhere near the depth, emotion, direction or humor of In Bruges.

There's very little to say about this movie without ruining the experience. While most of the movie is a good fantastical castaway story with some great direction (Though somewhat boring at bits in the start and middle, and maybe not enough fantastical at times for such a tale), and even though that could work very well as a standalone, albeit not be as memorable as it is, what gives it an edge is, without a doubt, the ending and the whole new meaning to the story and themes.

Excellent movie. A psychological thriller that will both weird you out, make you question what you are watching, and right out amaze you. I wish we had been given a little more back-story on the reason Nina's character is as she is (other than her mother), just so I could connect to her better, and the abrupt ending left me wanting a bit more, but even then the ending as the consequence itself fits perfectly.