This Team Fortress fan animation created with Source Filmmaker is a cool tribute to the ZombiU CG trailer.
Valve have created Expiration Date, a 15 minute animated short featuring all the Team Fortress characters.
Lil Guardian Pyro
Lil Guardian Pyro is the winner for the best overall prize at this year's Valve Saxxy annual animated film competition.
Counter-Strike: Global Offensive - Trailer
Valve show a grittier more realistic use for Source Filmmaker with a trailer for Counter-Strike: Global Offensive.