fxguide has a list of the top10 VFX in TV commercials of last year, with breakdowns and making-of videos.
Excerpt from fxguide:
1. Canal+, Bear: vfx by Mikros Image
Easily our favorite spot in 2011 was ‘Bear’ for Canal+, which saw Mikros Image incorporating a CG bear into a faux look behind the scenes of a film set. We covered the spot here in an interview with VFX supervisors Laurent Creusot and Guillaume Ho. Check out the new breakdown below provided by Mikros.