Although iTunes has been rebranded as the Music app with the release of macOS Catalina, many Mac users still use iTunes on older versions of the operating system.
To buy or rent movies from Apple, you need an Apple ID and iTunes on your computer. If you have both, you can easily find and download movies.
Follow these simple instructions to download movies from iTunes Store.
While streaming movies is popular, downloading them makes sense when you're not near a reliable high-speed network connection.