In early May, information surfaced suggesting that Google was toying with the idea of allowing offline playback for movies to Chromebooks. Today that information becomes a reality as Google took to Google+ to announce that there was a new app in the Chrome Web Store available allowing just that. With the app you’ll be able to watch movies and TV on your Chromebook regardless of having an Internet connection.
The icing on the cake includes info cards, and improved Chromecast support. This is on top of the local playback experience in the Chrome web browser. So if you’re on a Chrome OS device head over here to get access to offline movies and much more.
source: +Google Play