Genre: Action - Adventure - Crime - Mystery - Thriller . Year: 2011 . Cast: Robert Downey Jr. as Sherlock Holmes | Jude Law as Dr. John Watson | Noomi Rapace as Madam Simza Heron . Plot : Sherlock Holmes (Robert Downey, Jr.) and his longtime trusted associate, Doctor Watson (Jude Law), take on their arch-nemesis, Professor Moriarty (Jared Harris), with the help of Holmes's older brother Mycroft Holmes (Stephen Fry) and a gypsy named Sim (Noomi Rapace).