Spectre: Director Sam Mendes teases clips from upcoming James Bond movie

Mendes says the film will delve into the spy's childhood

Daniel Craig and Rory Kinnear film Spectre in London (Rex Features)

James Bond's new story will focus on his childhood, director Sam Mendes has revealed.

"In this movie, Spectre, what you have is a movie entirely driven by Bond. He is on a mission from the very beginning. He is on the hunt, on the trail of somebody," Mendes says.

He added it would be tied to the "crucial story of Bond's childhood" but gave no further details.

The footage, uploaded to Mendes' video blog, shows Daniel Craig, Ralph Fiennes, Ben Whishaw and Naomie Harris in character.

"It's about whether or not to pursue the life he's always pursued, whether he matters and is he going to continue or not," Mendes said. "And you're going to have to come to see the movie to find out whether he does."

Mendes said that he wouldn't direct another Bond after Skyfall, saying he wanted to focus on theatre instead. However, he explains in the video that he couldn't resist taking up the licence to kill again. "The reasons I'm doing the second Bond movie are the reasons I would do any movie, really, which is all to do with the story," Mendes said.