Modern Myth Media have done a podcast on Chris Nolan's first film "Following"
http://ec.libsyn.com/p/0/a/8/0a8c4469e4efc9e0/Episode_87_MMM_Podcast.mp3?d13a76d516d9dec20c3d276ce028ed5089ab1ce3dae902ea1d01cc8031d0c05e79eb&c_id=4926937
Haven't had a chance to listen to the whole podcast so not sure if it's mentioned, but there is also a real evident influence from Edgar Allan Poe - I saw Following years ago long before Batman Begins because of the premise of Following - I was a fan of Poe's "Man of the Crowd". Think about Poe's "Dream within a Dream" too. Has Chris ever mentioned Poe in interviews?
Other links to Poe - Momento won the Edgar Allan Poe Award.
[Another?] Christopher Nolan wrote a book [img=http://books.google.co.uk/books/about/Symbolism_in_the_Short_Stories_of_Edgar.html?id=-L08twAACAAJ&redir_esc=y]http://Symbolism in the Short Stories of Edgar Allan Poe[/img]