Like when Mr Venn was a little kid, he would group things into areas, saying where there was an overlap, now those venn diagrams have turned themselves inside out to give us http://www.liveplasma.com/

Where you can search and see the relations between movies and music. Great stuff if you are wanting to get an idea on what to watch next from your http://www.lovefilm.com subscription (if you havent subscribed yet.. do so and say mark.drew AT gmail.com sent ya!) or what to get next from iTunes.