I refuse to have an opinion about S. Darko, because the title gives me a headache. I understand the principle that it's supposed to be short for Samantha Darko, but I keep looking for a code or a reference... "Sdarko"? "Ess Darko"?
And, no, it's not in an interesting, mysterious Donnie Darko way, like I expect they imagine it will. Just in a "Leave my brain, you bastard title before I chew off my own leg to make the pain end!" way.
I am adding director Chris Fisher and writer Nathan Atkins to the (overlong) list of people I owe a punch in the jaw if I ever meet them, though.