The Blu-ray has several interesting special features (which are in 3D too, bonus!) including one on the creation of the CGI 3D effects which is worth a look). If you have the hardware to watch this in the extra dimension, it's worth a rent certainly, or wait for the price to reduce and check it out. Personally, I manage to snag it from Amazon for £8 as a pre-order (last I checked it was still at that price). Try and avoid the anaglyph DVD version though to get the best out of the 3D.
6 out of 10