. While Apple has released numerous updates since then, version 10.1.12 is often cited by the community as a stable alternative to later versions (like 10.1.13) which some users reported had significant bugs. Apple Support Community 2. Download and Installation Procedures
This is the safest and only official method. If you have previously downloaded iMovie on your Apple ID, you can redownload the version compatible with your OS. imovie 10.1.12 download