There's a lot of discussion on here as to whether this film constitutes a horror film or something more akin to a psychological drama.

As a horror film, I didn't find the film scary, and as a psychological drama, not particularly fresh in what it was presenting. I consider 'The Road' as a much, much stronger example of a film that blends horror and psychological drama - in exploring the limits of humanity & family in an apocalyptic setting.

It's nonetheless a well-made film with fine performances, but I came into the film expecting...something great, which it wasn't. That's hype for you.