It's a FAKE!
This is the best Joker figure right here, all better than Hot Toys' lame attempts.
Believe it or not, that cereal batman (OC) and the joker figures were actually my first nolan batman figure/first figure i bought during the year 2008. Ever since i quit collecting from the mid 90s.
Though i dont know where it is now, i do remember my daughter playing with it, since i wont let her play with my HT ver. And that theres a paint rub on the joker's nose.