After a brief closed-beta period, Valve has now opened up the Source Filmmaker -- their in-house tool used to make all of their recent game trailers -- to all comers.
The utility -- which can be downloaded directly via Steam
-- enables players to create movies from Source Engine game assets, and has already sparked a lot of creativity, much of which can now be viewed and browsed over at this new SFM community library
that Valve has deployed, and is sure to inspire much more in the coming months.
In addition to the "Meet the Heavy" session, Valve has now also released the project workings of "Meet the Engineer", so assist in familiarising budding animators with the software.