Google Play Movies and TV is the app for the video content users can buy in Google's Play Store. Purchases may show up in YouTube in Purchases, but this app is the piece de resistance for playback features. Slide your finger across the screen for fast forward or rewind, remember playback position if you need to bail on Blazing Saddles and actually get back to work, and the helpful tidbits of information you can find by tapping actors' faces and seeing their bio and other works. Pinning content for offline playback is simple and more importantly conscientious: if you own HD content you have a setting to decide if you would prefer the HD or SD copy for offline playback.
Content, and thus the usefulness of the app, is constrained by content deals and countries of availability. More countries are being added every month, but alas, it is nowhere near complete. Movies are available in over 70 countries, but TV Shows are only available in the United States, Australia, Canada, Japan, and the United Kingdom. That’s a royal shame, but content deals and the legislation around them are different for every government.