On the advice of Kottke I watched the movie Primer last week.
I’m still not sure I get the film (or the exact workings of the time travel it portrays) but I had fun in my confusion.
If you were ever the type to tick off a list of reasons why Back to the Future wouldn’t have worked, this movie is for you.
It starts a little slowly and ends a little abruptly but the middle section is pretty fantastic. I’d recommend it for the choosy sci-fi geek.
Here are some useful links (I’d even go so far as calling them study guides) if you’re inclined to watch the film. The whole thing is on YouTube and/or Netflix: