DO NOT WATCH THE SEQUEL.
S. Darko is possibly the worst film ever created. Donnie Darko was fantastic, so I rented S. Darko. At the end, I almost vomited at how half-assed and god-awful it was. Where Donnie Darko had many awesome concepts, philosophical conundrums, and a fantastic storyline, S. Darko has virtually no plot, no point, and an awful presentation. I'm not going further than that.