Sadly overlooked, deserving of your attention.
I'll be brief - in the UK at least it suffered due to a severely limited 2D release (not everyone likes or can cope with 3D). To be fair the 3D was used effectively, but is not essential, and I'm definitely getting this to watch on my 2D TV. The film itself? The tone is pitch-perfect, with casting for both Dredd and rookie Anderson bang on.
Easily one of the best films of 2012, and one of the best films in the past few years, period.