February 5 - Rachel McAdams is spotted making a surprise cameo on the set of Sherlock Holmes 2 in Strasbourg, France. McAdams played professional thief Irene Adler in the first film and there was some question whether she'd be back for the sequel. Question no more!
The streets of Strasbourg were turned into a pretty authentic European village, which you can check out in the gallery below.
Courtesy of Stras.info, here's some video of the days shooting -- including a pretty cool shot of stuntmen flying through the air: