serious documentaries

Not everyone enjoys documentaries but some of the big hitters would be cool. Zeitgeist comes to mind. there are two of those but they are pretty popular even on you tube. I subbed to a group on reddit about Time Travel because of the titor phenomenon early 2000; they have a list or time travel movies that I should post here. And if you dont know about John Titor... your missing out on some really bizarre shit about reality and time lines. you just have to dig that rabbit hole yourself.