Recently, Warner Bros released podcasts that include interviews of the cast and their response to the movie.

Everywhere else links to iTunes for the download but you don't need iTunes to download them. So for those who don't have iTunes or can't use it:
- Conversation with the Cast Part 1 (MP3)
- Conversation with the Cast Part 2 (MP3)

Note: Right Click and Save As... You can put it on your MP3 player and listen to it or just listen to it as is on your computer.