How do I setup AirPlay?

Your Apple TV will have to be connected to the TV that you’ll like the movie to be playing on.

With the AirPlay feature on your iOS device, select the AirPlay option to watch your movie on your TV. Make sure your iOS device is on the same Wi-Fi network as your AirPlay device. Select the video you want to watch from your device and press the AirPlay button (this will not appear if you are not on the same Wi-Fi network). Select the AirPlay device (for example, “Apple TV”, if this is your AirPlay device), and your content will begin streaming on your TV screen.