Robert Downey Jr. reprises his role as the world’s most famous detective, Sherlock Holmes, and Jude Law returns as his formidable colleague, Dr. Watson, in “Sherlock Holmes: A Game of Shadows.” Sherlock Holmes has always been the smartest man in the room…until now. There is a new criminal mastermind at large—Professor Moriarty (Jared Harris)—and not only is he Holmes’ intellectual equal, but his capacity for evil, coupled with a complete lack of conscience, may actually give him an advantage over the renowned detective.