Google have updated the Android Google Play Movies and TV app. The update includes the option of selecting the download format for offline viewing, so you can pick either HD or SD formats. If you are downloading a movie for a small devices you may as well download the SD format saving storage space and download time.
Also including in the update is a fix for playback errors, video streaming performance on KitKat devices and other bug fixes.
Get your content offline faster – now HD movies and shows may be downloaded in HD or SD.
Fixed Error 31 issue affecting some devices during playback.
Improved video streaming performance for select KitKat devices.