A number of Hollywood studios are eyeing JK Rowling's mystery novel The Cuckoo's Calling, which was published under the pseudonym Robert Galbraith, with the aim of adapting it into a film.

Deadline reports that Warner Bros, which released the multimillion-dollar Harry Potter series of movies, is heading up the pack due to its established relationship with Rowling. The British author was exposed as the writer of The Cuckoo's Calling earlier this month by a friend of one of her lawyers.

The book shot to No 1 in the UK hardback fiction charts last week after the revelation, selling 17,662 copies in seven days. Even prior to the leak, it had received two offers from television production companies.

Rowling's writing as Galbraith has been compared to that of Lee Child, whose Jack Reacher novels were recently made into a Hollywood film of the same name starring Tom Cruise and Rosamund Pike.