The Golden Gai area (inside Shinjuku) is an amazing grid of very very small streets, with hundreds of small tiny bars - 10 persons maximum for each one of them! It's where you can find the famous bar called "La Jetée", because of a Chris Marker's movie. It's a famous bar where filmmakers go whenever they visit Tokyo (Wenders, Jarmusch, Philibert, Tarantino have been there).