Sam Mendes on Bond and Shakespeare: '[it's] not an unusual feeling... to deal with characters that already exist. Where [Skyfall] differs is it's a totally new story. We're not remaking Live and Let Die or The Spy Who Loved Me. You don't have that certainty that you have with Shakespeare, that there is a structure there that will hold you, a story that fundamentally works that has been tried and tested over many years.'