The mini-movie shot by Joe Wright (director of Atonement) and starring Keira Knightley is a visual delight:
Go visit the website and virtually walk up the famed mirrored staircase, gaze up at the custom crystal chandeliers with dangling 5s, Gs, and interlocking Cs, and then watch behind the scenes videos of the creation of the movie/advertisement -- they tour the apartment, visit the shop and shoot at the gorgeous Palais de Tokyo!
The apartment at 31 rue Cambon was used to receive journalists, distinguished guests and many lovers. It was also her favorite place to find inspiration. When she arrived at the apartment, one of the shop girls was tasked with perfuming the entrance and staircase with Chanel No. 5!