If you haven't already, download the "Movies Anywhere" app and start syncing your accounts. This app is replacing "Disney Movies Anywhere" only it's a single service that links all your Vudu, iTunes, Disney Movies Anywhere, Amazon, and Google Play movies in a single platform.
I just did that last weekend and all my Vudu movies imported to my iTunes library like I already purchased the titles. I even tested Vudus "disc to digital" feature where you scan a Blu-Ray disc and pay $2 to own a digital copy - and those titles showed up in my iTunes library too. I was about ready to drop $80 for the Harry Potter box set on iTunes and instead I spent $16 in Vudu and now the movies are on both of my AppleTVs.