Moritz Mohr’s feature debut is the colorful and bloody revenge tale “Boy Kills World” which opens Friday in theaters. As he aims to topple a dynastic crime family, led by Hilda Van Der Koy (Famke Janssen), scores of enemies are destructively dispatched, sure to leave audiences surprised that the increasingly creative and gory violence made it past the MPAA. We always treated this as a comic book movie without a cartoon.