Cinemas must 'drastically improve' or lose audiences, says Christopher Nolan

Interstellar director tells festival audience about the importance of using real film, as opposed to digital technology

Cinema chains need to drastically improve the experience they offer to customers or the next generation of moviegoers will stop going, the film director Christopher Nolan has said.

British-born Nolan, one of the most the powerful film-makers in the world, was speaking at the London Film Festival (LFF) on Friday about the importance of using real film, as opposed to digital technology. That includes cinemas still having projectors to show, for example, 70mm film.