Roberts, Owen to star in 'Duplicity'

Julia Roberts and Clive Owen have signed up to star as lovers in new film Duplicity.

The movie tells the story of a couple, both spies, who team up to steal a valuable item.

The Bourne trilogy's writer Tony Gilroy penned the script and will also direct the film.

It will be Gilroy's second time as director, with current movie Michael Clayton being his first.