Yates, who directed the last four Potter films, is about to start work on developing a "Doctor Who" movie with Jane Tranter, head of L.A.-based BBC Worldwide Prods.
"We're looking at writers now. We're going to spend two to three years to get it right," he said. "It needs quite a radical transformation to take it into the bigger arena."
"Doctor Who" follows the adventures across space and time of a super-intelligent alien in human form, who battles a variety of cosmic bad guys aided by plucky human companions.
"The notion of the time-travelling Time Lord is such a strong one, because you can express story and drama in any dimension or time," Yates said.
