In a closed beta for a couple of weeks, the Source Filmmaker is now an open beta.Not too long ago Valve teased a close beta for their Source Filmmaker tool, which allows users a creative way of creating TF2 machinima. Earlier today they raised its status to an open beta for everyone to get behind. We thought we would let you know about the tool due to its creative way of creating videos using the Source engine, and TF2. It is also worth noting that its the exact tool Valve has used to make all of their cinematics over the past few years.