Dunno really, i think all the DLC comes on the disk with the Komplete Edition
. Not sure how the online pass works with it, i would assume that you would need to get it new for the online pass to work. Shop around, theres a few places selling the Komplete Edition fairly cheap new, plus new you get the MK movie download and the sensational album of the year, songs inspired by the warriors. How they topped Chinese Ninja Warrior from the original album ill never know.
Seriously you can live with out the film and the music. Trust me