Apple does not officially provide standalone DMG files for older iMovie versions on its support site. Instead, the safest way to obtain it is through the :
: Version 10.3.3 typically requires macOS 11.5.1 (Big Sur) or later, but it is most optimized for macOS 12 (Monterey) . imovie 1033 dmg new
: Open the Mac App Store and click your name/profile at the bottom left. Apple does not officially provide standalone DMG files
