Sync films between your Mac and iPhone or iPad
You can sync all or a selection of your films on your Mac to your device.
See Overview of syncing your Mac and your devices.
Sync films to your device
Connect your device to your Mac.
You can connect your device using a USB or USB-C cable or using a Wi-Fi connection. To turn on Wi-Fi syncing, see Sync content between your Mac and iPhone or iPad over Wi-Fi.
In the Finder
on your Mac, select the device in the Finder sidebar.
If you connect your device to your Mac using a USB cable and can’t see the device in the Finder sidebar, see If your device doesn’t appear in the sidebar when syncing.
Select Films in the button bar.
Select the “Sync films onto [device name]” tickbox to turn on syncing of your films.
With the tickbox selected, syncing is set to transfer all your films to your device.
To sync a selection of films, select the “Automatically include” tickbox, then choose the number of recent or unwatched films from the menu.
Select the tickboxes for the individual films you want to sync in the films list. Deselect the tickbox for any film you don’t want to sync.
When you’re ready to sync, click Apply.
You can choose to sync your Mac and your device automatically whenever you connect them. To turn on automatic syncing, select General in the button bar, then select “Automatically sync when this [device] is connected”.
Before disconnecting your device from your Mac, click the Eject button 
in the Finder sidebar.
Remove automatically synced films from your device
To remove an unwanted film from both your Mac and device, delete the film from your Mac and sync your device.
To remove a film from just your device while keeping it on your Mac, follow these steps:
Connect your device to your Mac.
You can connect your device using a USB or USB-C cable or using a Wi-Fi connection. To turn on Wi-Fi syncing, see Sync content between your Mac and iPhone or iPad over Wi-Fi.
In the Finder
on your Mac, select your device in the sidebar, then select Films in the button bar.In the films list, deselect the tickbox of the film you want removed.
Sync your Mac with the device.
WARNING: If you delete an automatically synced item from your Mac, the deleted item is removed from your device the next time you sync.
Before disconnecting your device from your Mac, click the Eject button in the Finder sidebar.