The film museum right next to Covent Garden, London Film Museum, is any Bond fan's dream destination.
The London Film Museum currently has a large display of James Bond movie props, which has the world’s most extensive collection of original Bond movie cars as well as other items. Some examples would be the small plane from the Octopussy movie, enigma from the For Your Eyes Only movie, as well as the crossbow and boat from Live and Let Die. The place also has Aston Martins from different eras, and the Lotus from The Spy Who Loved Me, which also travels underwater.
There is also a large collection of storyboards from the movies, as well as posters from different Bond movies. The museum shop has a good collection of Bond merchandise.