Showing wrong artwork
I have a similar problem, but here is a different description:
All my iTunes movies have cover art. In ITunes, on the iMac, the cover art for each of the movies is the correct artwork.
HOWEVER
When I bring up Videos on my iPad2, and click "shared libraries", then "movies" on my iMac, the movie title and art work show up correctly attached to about the first 20 titles, but, after that the text movie title is correct but the artwork is not. For example, the text title will be "The Matrix" but the cover art will be "Doctor Who" or something else. Clicking "The Matrix" text title brings up the description page and then the art work is correct. Click "Done" to go back to the list of movies and the art work is again "Doctor Who".
This is a 100% repeatable problem.... on the iPad2 (I first noticed it on my iPad1). It has not gone away with all the revisions since I got my iPad2.
On the AppleTV, which I also have, the art work and text movie name are correct. Go figure. Supposed to be the same IOS. It also works correctly when viewing movie titles in "shared libraries" from another MacBookPro running Snow Leopard. Seems to be an iPad issue only.
Footnotes: I am an experienced Apple SysAdmin, so I have at least some of my Apple ducks lined up. Also I have several hundred movies in my iTunes movie library on the iMac. That might be a factor here. I don't know.