Russell wants Catherine to be David's co-star

London (ANI): Welsh television producer and creator of Doctor Who, Russell T Davies, has revealed that he is desperate to have Welsh actress Catherine Zeta Jones as a co-star in a film version of the BBC1 hit. Davies, 45, who is an award-winning writer, wants Jones, 38, to be David Tennant's co-star on the big screen.

"Being from Wales myself, I'd love to have Catherine Zeta Jones as a companion for the Doctor," the Sun quoted him as saying. But his one insistence is that no one could replace Tennant, 37, as the Time Lord. "To have anyone else would be inconceivable," he said.

When the new Doctor Who boss Steven Moffat hinted last month that the sci-fi hit could become a movie, Davies revealed he had not given it much thought. "I haven't had time to spit, let alone make a film. It would be hard but it?s a lovely idea," he added.