[Martijn]

Another idea would be to still use smart playlists, but create two. One for Disney, and one for everything but Disney. Then use a skin that supports custom main menu/home buttons (I personally really like Transparency) and point to those instead of the "real" Movies button.

You can even make a smartplaylist that excludes everything what is in the other smartplaylist.
So you only need to change the rules in that one playlist.

I have everything split up in my HTPC and i never need to change a thing. I just let XBMC scrape everything.
Another plus is that the boxset are stiull scraped for you Disney movies and show in that smartplaylist