Hello gibs82,
Thanks for using Apple Support Communities.
For more information, take a look at:
iTunes Store: Movie rental frequently asked questions (FAQ)
http://support.apple.com/kb/ht1657
- If you download a rented movie on your iPhone 4 or later, iPad, iPod touch (4th generation or later), or Apple TV: It is not transferable to any other device or computer.
Have a nice day,
Mario