The program for Montreal's annual Nuit Blanche festival promises colorful and expressive resistance to the season's cold dreariness. This is the 11th 'all-nighter' of its sort. Multimedia art installations and performances are presented, for free, in all corners of the city, reachable by free shuttles...and the metro is open all night. With events spread out from Mile End to Old Port, and the Olympic Stadium to the Latin Quarter, it has as much potential to delight as it does to overwhelm, so don't try to do it all! Do get out there, though.