Renting gives you 30 days to start watching and 48 hours to finish once you’ve hit play. Buying gives you "indefinite" access as long as you have your Amazon account.
Buying movies on Amazon (now officially ) is straightforward, whether you're a Prime member or just have a standard Amazon account. Here is how to do it across different devices. 1. Buying on a Web Browser (PC or Mac) how to buy movies on amazon instant video
Due to Apple’s commission fees, you cannot buy movies directly inside the Prime Video app. You must open Safari or Chrome , log into Amazon.com, purchase the movie there, and then return to the app to watch it. Important Things to Know Renting gives you 30 days to start watching
This is the most reliable method as it avoids app-store restrictions. Here is how to do it across different devices
Launch the Prime Video app on your Roku, Fire TV, or Smart TV. Find Movie: Use the search icon or browse the "Store" tab.
Go to Amazon.com and select Prime Video from the search dropdown, or go directly to the Prime Video tab. Select: Search for the movie you want.