Everything related to Diana in Anything Else is right here:
http://www.youtube.com/watch?v=C9wS--_n7ocFor what its worth, I was disappointed with the movie. I thought Woody had lost his touch, but then he redeemed himself reasonably well with Vicky Cristina Barcelona.
Diana mentioned Public Enemies during the concert in York. She did a couple of minutes of piano improvisation that she said she used to "audition" for the movie (it wasn't Bye Bye Blackbird). I'm not convinced we'll actually see Diana in the movie. I think its more likely we'll hear her play during a scene. But hopefully I'm wrong!