Robert Downey Jr. In ‘Sherlock Holmes: A Game Of Shadows’ Trailer [VIDEO]

Robert Downey Jr. fans, this one’s for you.

After Guy Ritchie’s 2009 Sherlock Holmes was a success both at the box office and with critics, Downey Jr. is back for round two as the quirky super sleuth in Sherlock Holmes: A Game of Shadows.

The sequel will feature Jude Law reprising his role as sidekick Dr. John Watson, Rachel McAdams as Irene Adler, Noomi Rapace as gypsy Sim, and Mad Men star Jared Harris as the evil villain Professor Moriaty.

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But you don’t have to wait until the film hits theaters on December 16 to see Downey Jr. in action. Watch the trailer (after the jump), complete with Downey Jr.’s charming British accent and a few sequences of the actor in drag, and then tell us what you think by posting in the comments section below!