London, Sept 23 : While Guy Ritchie’s Sherlock Homes is yet to hit theatres, the movie bosses have already started working on a sequel, it has emerged.

The film has Robert Downey Jr. in the main lead and Brit actor Jude Law is taking on the role of Dr. Watson, reports Daily Express.

According to Hollywood Reporter, film''s epic trailer has received mixed reviews by critics - but movie chiefs are busily rounding up writers to draft a script for a follow-up to the Arthur Conan Doyle tale.

Downey Jr. had said he is keen to star in a follow-up.

"We definitely agreed to renegotiate for a part two. We feel really strongly about that. We might shoot the next one abroad," he said. (dpa)