Joss Whedon is awesome!
He’s co-written this awesome movie!
I really can’t say anything about it because to say anything could give too much away (I will say one thing that has nothing to do with the plot… Chris Hemsworth is super hot in this movie). There is a great story with some great twists going on here.
If you like horror, and you like films that tweak with the genre like Scream did, you will like The Cabin in the Woods.