Robert Downey Jr. and Jude Law portray the crime-solving duo of Sherlock Holmes and Dr. John Watson in this 2009 crime/mystery flick based on the character of the title name. With aid from former adversary Irene Adler (Rachel McAdams), Holmes and Watson investigate a series of murders connected to occult rituals. Mark Strong plays the villain Lord Blackwood, who has somehow returned after his execution to take over the British Empire using an arsenal of dark arts and new technologies.