Special features on the level of the SR dvd. Henry's screentest in the Reeve suit (it was confirmed that it was the suit Reeve actually wore in his movies, as those are in museums and WB archive vaults etc. But it was apparently an exact replica they had specially made). Full doco about the new suit. Designing Krypton. Lois Lane mini. How they reinvented flight effects, as well as how Superman and the other Kryptonains fight. A step by step process of how the movie came together (from Goyer's epiphany to Nolan's pitch, hiring Zack and his changes etc.) Cavill's workout. I've never personally seen this Maximum Movie Mode thing, but it sounds interesting.