Donnie Darko: The Philosophy of Time Travel by Roberta Sparrow

I figured there would be a Donnie Darko thread, but apparently not.
Anyway, a detailed explanation of time travel based on the book in Donnie Darko.

http://2008.cyj.me/pdf/philosophy_time_travel.pdf

https://www.youtube.com/watch?v=-9VGnucSxm8

Not a big fan of DD, but this was pretty cool.