Sherlock Holmes is a 2009 period mystery action film that stars Robert Downey Jr. as the legendary detective character created by Sir Arthur Conan Doyle. The film was directed by Guy Ritchie and produced by Joel Silver, Lionel Wigram, Susan Downey, and Dan Lin, with a screenplay by Michael Robert Johnson, Anthony Peckham, and Simon Kinberg. Alongside Downey, Jude Law portrays Dr. John Watson. Set in 1890, the narrative follows the eccentric Holmes and Watson as they investigate crimes committed by Lord Blackwood, a mystical figure who appears to have returned from the dead.