The producer of Guy Ritchie’s forthcoming Sherlock Holmes movie today dismissed talk of competition with a rival offering starring Sacha Baron Cohen.

Former hellraiser Robert Downey Jr is set to star as Sherlock Holmes in Guy Ritchie’s movie about the Victorian sleuth, according to US reports.

Borat and Ali G star Sacha Baron Cohen has signed up to play Sherlock Holmes in a new Hollywood film about the fictional detective.