Another Elfman interview (nearly 29 minutes long) taking place at his home studio while he's working on MIIB, He doesn't really talk about MIIB , but mostly how he works as a composer and even talks about Spider-Man (@12:18). Very interesting that he was mostly scoring to the pre-vis with some real images in between, but not the finished picture b/c the effects weren't completed yet. He finally got to see the finished product at the movie's red carpet premiere.
The second video is Elfman playing back a snippet of his mock-up of the MIIB main titles, which sounds almost exactly like it does in the film but with via synthesisers. This video is basically an extension from the interview above. It's about 4 minutes long.