Sci-fi film helmer Christopher Nolan doesn't own a phone

London: 'Interstellar ' director Christopher Nolan doesn't even own a phone and thinks that he couldn't be bothered with smartphones and emails.

The sci-fi director remains unconvinced he needs the basic personal technology of even a mobile phone or an email account, the Independent reported.

He told The Hollywood Reporter that not having a phone gives him time to think and when one has a smartphone and 10 minutes to spare, they go on it and start looking at stuff.

Nolan added that when he moved to Los Angeles to start making films in 1997, few people had a mobile phone and he "never bothered" to get one and has earlier referred to mobile phones as "just toys for grown-ups".