In order to avoid associations with copyright claims, website publishers may not display Google ads on web pages with MP3, Video, News Groups, and Image Results.

This is stated, a bit small of a description, but I'd like to know what examples they mean? Moreover the "Image" results.

To be more specific....say I wanted to have a "Star Wars" fan website...and I put Google Adsense banners on it...are images like Darth Vader/Luke Skywalker/Hans Solo in the art/banners of the site allowed? Or is it something different that they are talking about?

I think they mean on image search results. Would be best to email them and ask them. There is a lot about the adsense terms that is very vague.