Among other things, a fascinating case study in adapting for the screen. The smartest choice is the integration of the monologues about pop music into the sex and murder sequences: in the novel they’re presented as sort of like interstitial essays, and folding them into the action is a clear improvement. At the same time, the movie plainly tries to move away from the source material, both by maintaining a different tone (it’s much lighter, funnier, and less extreme than the…