RSS feed for new AppleTv titles?
There should be, but almost all I found were people complaining that there wasn't one.

Given that, one or more of these might help:


Apple TV Junkie has a feed of at least some new movies.
Apple has an iTunes RSS Generator
While it doesn't do new movies, it will give you top movies and top movie rentals.
If you felt like getting into the code, here's the  iTunes search API.
This URL launches iTunes and goes directly to the "New Movies to Rent or Own" section of the iTunes store.