Sherlock Holmes: A Game of Shadows is an upcoming 2011 action mystery film directed by Guy Ritchie and produced by Joel Silver, Lionel Wigram, Susan Downey and Dan Lin. It is a sequel to the 2009 film Sherlock Holmes based on the character of the same name created by Sir Arthur Conan Doyle. The screenplay is by Kieran Mulroney and Michele Mulroney. Robert Downey, Jr. and Jude Law reprise their roles as Sherlock Holmes and Dr. John Watson, respectively, as the duo join forces to outwit and bring down their most cunning adversary, Professor Moriarty, played by Jared Harris.

After the success of the 2009 film Sherlock Holmes, a sequel was fast tracked by Warner Bros. with director Guy Ritchie dropping out of an adaptation of Lobo and Robert Downey, Jr. leaving Cowboys & Aliens. It was unclear if Rachel McAdams would appear in the film. McAdams said, "If I do, it won't be a very big thing. It's not a lead part". On 4 February 2011 Warner Bros. confirmed to Entertainment Weekly that McAdams will play a part in the sequel.

The film is reported to be influenced by Conan Doyle's The Final Problem. While the film takes place a year after the events of the first film, Sherlock Holmes: A Game of Shadows is intended to be a stand-alone film that doesn't require knowledge of the previous film.

In October 2010, Robert Downey, Jr. and Jude Law were seen rehearsing a fight scene as shooting took place in Richmond Park, south-west London. In October 2010 steamship PS Waverley was chartered on the English Channel for filming, and a large green screen was erected at Didcot Railway Centre with a large action scene filmed there in mid-November. In late November, a scene was filmed at Victoria Bridge, which is part of the Severn Valley Railway. In January 2011 scenes were also filmed at Hampton Court Palace. Filming also took place in September 2011 in Greenwich at the Royal Naval College. Watch free movies online without downloading in full strength.

Early February 2011, principal photography moved for two days to Strasbourg, France. Shooting took place on, around and inside the Strasbourg Cathedral. The scene is said to be the opening scene of the movie, as it will cover an assassination/bombing in a German speaking town.
The film is scheduled to be released 16 December 2011 in the United States and United Kingdom and 25 December 2011 in other countries. Watch movies online without downloading in full strength.