Rian Johnson, Richard Kelly, and Roberto Orci, masters of weaving time travel into film, dissect the elements that make for a believable "operating system" when writing a comprehensible screenplay timeline. A Conversation About Cheating with my Time Traveling Future Self follows, with one man's attempt to better his life by traveling back in time to offer himself advice.
Did You Know?
It's emotional logic, that's what you're looking for in screenwriting.
Features Back to the Future