The veteran has played fictional character M, the head of England's Secret Intelligence Service, in a handful of the 007 films, including new release Skyfall.
And to honour Dench for her on-screen portrayal of a real-life secret service boss, chiefs at MI6 asked the 77 year old to meet them at their private headquarters in Vauxhall Cross, London for lunch and to give her a special gift.
She tells the New York Daily News, ""I asked them some questions, some of which they could answer and some of which they couldn't, and during the course of the lunch, they gave me a camera - a little camera. They said, 'This has been used... to solve something. We can't tell you what, we can't give you film for it, but it has amazing high definition.'
""It was a tiny little camera in a Smythson red leather case, which makes it very British. And I opened it and it says, 'To M from C,' because the head of MI6 is called C. So it's a treasured possession, as you can imagine.""