: If you are using an older Mac that cannot run the latest macOS, the App Store may prevent you from downloading iMovie. Finding a 10.3.3 DMG is often the only way to reinstall the software on Monterey-era machines.
The term refers to the Apple Disk Image file format used to distribute and install the software. Users often search for the "best" DMG version when they need to roll back to a version compatible with their specific macOS, as newer versions in the Mac App Store may require the latest operating system. Overview of iMovie 10.3.3 imovie 1033 dmg best
If your Mac runs macOS 10.13–10.14, iMovie 1033 DMG is indeed the best – just download wisely. : If you are using an older Mac