I just finished watching an interesting documentary on art in the Islamic world.
It centres on a recent exhibition at the British Museum, but also looks at art in the Islamic world, past and present. A small segment on Shia art is in there as well. It's been uploaded to youtube in the past hour - but so far only the first 2 parts, with the other 2 soon to be uploaded, I expect:
Enjoy.
Cheers,
Shafique