How the hell has a Code Geass movie not been optioned by American studios?!

[The Sevenshot Kid]

Recently, I've been finishing up on watching the second season of Code Geass and I had a thought: How has this not been made into a movie?

It has everything a studio could want!

Giant robots! War scenes! High school! Shower scenes! Pretty white people! A mask avenger! Japan!

This show is crying out for a major studio to grab it. For once they could cast a white guy in the lead without pissing off legions of fans! As long as they had a good writing team and real innovators behind it (Peter Jackson and Neil Blomkamp being the dream team) their film would not fail.

Is there anything about the show that you guys think would/wouldn't lend itself to a film adaptation? Also, feel free to just talk about the awesomeness of the show if you want.