Comic Books / Batman / Documentaries

When I was looking for more information on comic books I found a documentary on Batman's psyche. I really liked the 80's-90's movies when I watched them a few years ago. This documentary analizes Batman and some of the most famous villains in Gotham City. 

I also found a documentary about the science of Batman and one about comic book superheroes that I'm going to post below. They're very interesting!