I successfully rented a YouTube Italian film yesterday from my iPad. Thanks for pointing me toward the rentals on YouTube.

The trick is getting YouTube to display in Full Desktop mode, and renting from Safari, not the YouTube app. This link explains how to get to Full Desktop mode.
http://appletoolbox.com/2015/09/2-ways-to-view-a-full-desktop-website-in-ios-9-safari/

Grazie mille Kristen!