Spoilers: Intelligent Flow Chart Breaking Down Time Travel in Movies
Ever wanted to know even more about time travel? Despite the vast numbers of great science fiction cinema, there are only around 30 movies that directly involve time travel in the plot. Many have been individually analyzed and scrutinized, but designer "Mr. Dalliard" decided to take on the task of organizing all of them together. So he made the "Time travel in movies" flowchart (found via FastCoDesign) which details the different functionality, worlds and time processes used in each film that differentiates them. It's actually an intelligent breakdown of time travel films and the ideas in them, like the Novikov self-consistency principle.
Here is the complete flowchart from Mr. Dalliard, who also comments (in 3rd person) on his Tumblr blog.
Click above for the original full-size version. The Novikov self-consistency principle is an idea developed by Russian physicist Igor Dmitriyevich Novikov in the 80s to solve the problem of paradoxes in time travel regarding interaction, essentially saying that it is impossible to create time paradoxes. It's referenced mostly in Twelve Monkeys and Harry Potter and the Prisoner of Azkaban with the Time-Turner they use. This is a fun guide that helps break down the concepts used in so many great time travel movies, from Planet of the Apes to Looper to Donnie Darko to Primer to Groundhog Day to Deja Vu, but it obviously contains some spoilers for the events in these films. A few of these concepts might be explored in Nolan's Interstellar next.