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 :
to fill the horizontal frame and then correct them in QuickTime Player after exporting. HEVC Compatibility: imovie 1033 dmg new
"The current version requires macOS 14.6 or later, but you can download the last compatible version." Key Changes in iMovie 10.3.3 Apple does not officially provide standalone DMG files
Sort of. You can create a custom project aspect ratio (9:16). However, the magnetic timeline is not optimized for vertical—text titles may clip. For heavy vertical editing, consider CapCut or DaVinci Resolve. You can create a custom project aspect ratio (9:16)
If the latest iMovie is free on the App Store, why go through the trouble of finding an older DMG? Here are the three primary scenarios: