First, there were Little Free Libraries. Then, there were little Free Blockbusters. This October, Free Blockbuster opened up in DFW. Hop in your car and type this into your GPS — 1020 W. Creek Dr., Hurst, Texas. Similar to Little Free Libraries, the concept is simple. For every movie you take, you leave a movie behind. VHS tapes, DVDs, and other entertainment media are accepted…