claim: Dan Trachtenberg makes films.
evidence: The Men 's omnium at the European Track Championships was first competed in 2010 .. European Track Championships. European Track Championships. 2010 European Track Championships. Prior to 2010 , there were two elite omniums held annually  : an endurance omnium and a sprint omnium .. 2010 European Track Championships. The Omnium consists of six different competitions over two days .. Omnium. Omnium