Insanity is relative.

Igby Slocumb, a rebellious and sarcastic 17-year-old boy, is at war with the stifling world of old money privilege he was born into. With a schizophrenic father, a self-absorbed, distant mother, and a shark-like young Republican big brother, Igby figures there must be a better life out there -- and sets about finding it.
Igby Goes Down keeps every mind human — it fights its subject at zero distance. The story fights on E8/E9 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.