Home page of Paul Marino a producer of machinima including the excellent ‘I’m Still Seeing Breen’ which synchronises clips from Half Life 2 to ‘So Cold’ by Breaking Benjamin
It can be downloaded from this site or viewed online via You Tube:
http://www.youtube.com/watch?v=LkOvoD-y0vQ
“Machinima is filmmaking within a real-time, 3D virtual environment, often using 3D video-game technologies.”