Hello wyeast,
Thanks for using Apple Support Communities.
You can watch the movie on the device you used to rent it. Please see the following support article for more information about renting movies from the iTunes Store.
- Mac or PC
- iPhone, iPad, iPod touch (with iOS 3.1.3 or later)
- iPod classic, iPod nano (3rd, 4th, or 5th generation)
- TV using Apple TV
Watch your movie on the device you used to rent it. If you rented the movie on your computer, you can move it to an iOS device or Apple TV (1st generation). To do this, connect the devices and sync using USB. When you move a rented movie from your computer, it will disappear from your computer’s iTunes library. You can move the movie between devices as much as you want, but you can only have it on one device at a time.
If you rented the movie on your iOS device or Apple TV, you can’t move it to any other device.
To watch an HD movie, you need to play it on a supported device: your computer, iPhone 4 or later, iPad, iPod touch (4th generation or later), or TV using Apple TV.
You can’t stream a rented movie from your computer to your Apple TV using AirPlay because it’s DRM (Digital Rights Management) protected content.
FAQs about renting movies from the iTunes Store
Take care,
Alex H.