It's been a few months since I watched it, and I still think about it. This movie is a lot, so I wouldn't recommend watching it if you don't think you're up to that. It leaves an impression. What made me the most uncomfortable with this movie, was that it actually happened. It's not even 2 hours long, but it felt like I sat there for ages watching it... Maybe it's because this movie really makes you think?
All in all it is a great movie, but not for the weak hearted ones.