Sherlock Holmes: A Game of Shadows is a 2011 British-American action mystery film directed by Guy Ritchie and produced by Joel Silver, Lionel Wigram, Susan Downey and Dan Lin. It is the sequel to the 2009 film Sherlock Holmes, and likewise features the Sherlock Holmes and Dr. John Watson characters created by Sir Arthur Conan Doyle. The screenplay was written by Michele Mulroney and Kieran Mulroney. Robert Downey, Jr. and Jude Law reprise their roles as Holmes and Watson and were joined by Noomi Rapace as Simza, Stephen Fry as Mycroft Holmes and Jared Harris as Professor Moriarty.