Sherlock's back! Robert Downey Jr. introduces the trailer for the upcoming Sherlock Holmes: A Game of Shadows, which pits Holmes and Watson (Jude Law) against arch-baddie Professor Moriarity.

There's action, humor, and cross-dressing. A Game of Shadows looks to be a worthy successor to the first Holmes movie.

Sherlock Holmes: A Game of Shadows is scheduled to premiere on December 16. Are you as psyched as I am?

Holmes joins Hugo Strange and Amanda Waller in the "obsessives who solved the greatest secret ever" club. Batman is not amused.

Awesome fan art by deviantARTist outlawink.