At first glance I dismissed Dredd (2012) as a horrible, cheap sequel to an already horrible movie. Kept hearing chatter about it and decided to watch it, turns out it is one of the best movies of 2012 and easily the most underrated.
It's a low-budget action film that is humble and doesn't try to go over the top. Simple plot, none of that save the world bullshit. Also, it utilizes stylized CGI rather than going for sub-par realism and looking like shit, which makes this film incredibly beautiful at times.