Fernando Meirelles (The Director) asked the post production team at O2Filmes to add a bunch of little effects to his last movie (360). I was responsable to create the digital snow particles in some shots, digital rain, and a full Cgi sequence with visual distortions on the Tunnel Scene.
Not too complex fx at all but very effective. :)
One of his wishes was to add more snow in some sequences. This is one of these shots.