Dirty = Hansel + Gretel
Check this krazy thought about DIRTY at the writer's site: http://dirtywriters.blogspot.com/
"...Chris Fisher told us to think of it as a Hansel and Gretel story. There is direct allusion to H&G in the first few minutes of the movie as Day’s kids watch an animated Hansel and Gretel cartoon.
GIL: The L.A. powers-that-be send these two lost children out into the dark woods of the city, hoping that they would just get gobbled up....'
http://dirtywriters.blogspot.com/