: Newer versions of iMovie (available on the Mac App Store) require macOS 15.6 or later. If your Mac cannot update beyond macOS 15.6, you will not be able to install the newest iMovie versions.
This error often occurs when gatekeeper blocks modified or corrupted downloads.
Complete Guide to iMovie 10.2.5 DMG Download for macOS iMovie 10.2.5 is a highly stable version of Apple's signature video editing software. It bridges the gap between older macOS versions and modern Apple silicon architecture. This guide provides secure download paths, system compatibility details, and installation instructions. Technical Specifications: iMovie 10.2.5