Mark Ronson has confirmed that he and Amy Winehouse have started work on the theme song to the forthcoming new James Bond film, 'Quantum Of Solace'.

However, the producer revealed that the duo have not been officially signed up to release the official film song, so it is not set in stone that it will be released alongside the forthcoming movie.

Speaking to BBC Music Week, Ronson said: "Hopefully it will get used. But I don't think we’ve been guaranteed it, so we're working on it and we'll see happens.

"They asked Amy, and I think Amy said that if she did it, she'd want to do it with me. So hopefully something will come of it. The demo sounds like a James Bond theme, hopefully. But I don't know if it'll get used."

Ronson added: "I'm sure there are loads more really famous people that probably we're competing with and we don't know about. I'm not sure, but hopefully I'll still be alive for at least 12 more Bond themes. If we don't get this one maybe we'll get another one."