Amazon has really gotten creative about things recently to set themselves apart from everyone else.
One of the reasons people run out to the store to buy a DVD/Blu-Ray is because they want to watch it right away. Amazon is solving that problem.
Purchase Transformers: Dark of the Moon (Two-Disc Blu-ray/DVD Combo + Digital Copy) for $21.99 and when you buy it you can watch it Instantly!
Watch the Amazon Instant Video rental on your PC, Mac, compatible TV or compatible device at no charge when you buy this Blu-ray disc from Amazon.com. Your rental will expire 24 hours after you begin watching or 30 days after your disc purchase, whichever occurs first. The Amazon Instant Video version will be available in Your Video Library and is provided as a gift with disc purchase.