To get the films on your big screen via Chromecast, open the app on your Android or iOS device and make sure you’re connected to the same WiFi network as your Chromecast. Then, click the cast icon at the top right-hand corner of the screen and select the name of your Chromecast.
If you’re not seeing your Chromecast displayed, make sure you’re on the same network or check the troubleshooting tips here.
You can now start watching. When you click to watch a film, it will play on your TV.