Great video tutorial on Depth of Field
I can't pretend to be an expert at film or even photography, though I am an avid learner. Today, I stumbled upon a great tutorial on depth of field, which is a topic that both video/film and photography people can gain some insight to. While this tutorial is 20 minutes long, it is pretty comprehensive, so I think worth the time.
Depth of Field may sound a bit geeky, but I guarantee that it's a topic that can help improve your craft be it still or in motion.