Jeez, what WASN'T filmed here? Vancity stands in for a number of American cities, so lots of things get made here. Justin Timberlake is up here working on a film, the Arnold S. film "The 6th Day" was filmed in the main library downtown, parts of Catwoman were filmed here (and in Montreal), parts of Scooby Doo 2 were filmed on my campus, lots and lots of bad movies of the week and straight to video films were made here, and Lions Gate Films (an emerging distributor) is based here.
This site has a pretty good list of films and syndicated series that are in production or starting production in YVR soon:
http://www.hollywoodnorthreport.com/