While most may not need to add CG objects in your videos, this new release of Blender
fills a void with motion tracking.
Placing videos on a plane that is motion tracked to your background video will be an open
door to new projects.
Follow these steps to download a beta release of Blender:
1. Go to Graphicall.org
2. In the sidebar you will see various filters. Click the icon that matches your operating system.
3. If you know the version of your operating system (32 or 64 bit) click that as well.
4. The site should now display all builds that match your operating system.
Click on any of the builds to download them. There is no right or wrong version, just pick any.
5. Once unzipped, no install is necessary, just locate blender.exe and run it.
6. Enjoy!
For a tutorial on using Motion Tracking see:
http://cgcookie.com/blender/2011/07/14/gsoc-tomato-branch-camera-tracking/