I love this movie! This movie made my day, really. Thanos is really interesting character. I think that we can call him "big badass'. In my opinion, this movie is not for young viewers, because it can make kids agressive.
I recomnend it not only for young viewers. This is really good movie, but there is a one problem - story of Ares. This is the most boring storyline - in my opinion, of course.