Guy Ritchie directed the first two installments, starting with 2009's Sherlock Holmes and then 2011's Sherlock Holmes: A Game of Shadows. Sherlock Holmes 3 was originally set to hit theaters in December 2020, but it was revealed earlier this year that the sequel will instead come out in December 2021.
Robert Downey Jr. is returning to star in Sherlock Holmes 3 after spending the last decade in the Marvel Cinematic Universe as Iron Man. The actor is now finished with the Tony Stark role after Avengers: Endgame and teased he was getting into his Sherlock role last summer. Jude Law is expected to return as Watson, but that has yet to be officially confirmed.