Not sure if this is an HBO exclusive or not, but they are showing a documentary on the life of Steven Spielberg, and it's pretty interesting. I hadn't ever noticed it before, but there is a common theme in almost all of his movies, that reflects a certain time in his life. I missed the first 20 minutes or so, saw it was showing live on HBO yesterday, and once I started watching, I couldn't stop. Worthy of a viewing if you like stuff like this.