iMovie 10.2.5 generally requires .
Transfer the resulting ZIP file to your target Mac via AirDrop or an external drive. imovie 10.2.5 dmg
From a Mojave/Catalina Mac that has iMovie 10.2.5, use Migration Assistant (in /Applications/Utilities/ ) to transfer just the Applications folder. iMovie 10
This article covers everything you need to know about iMovie 10.2.5, its key features, why users look for the DMG installer, and how to download and install it safely. What is iMovie 10.2.5? its key features
Navigating iMovie 10.2.5 DMG: Features, Compatibility, and Safe Download Practices