For example, even Mac could be affected by a virus and thus results in iMovie crashing Mac on startup. The reasons why iMovie crashing macOS Big Sur or other OS X version vary from one Mac to another. IMovie Keeps Crashing Solution 1: Trouble Shooting Guide > iMovie Crashing Big Sur Solution 2: Use an iMovie for Mac Alternative > iMovie Crashing Big Sur Solution 1: Trouble Shooting Guide For those who is suffering iMovie issues after updating their macOS to Big Sur, also learn about how to get back the older iMovie 9.0.9 here. If it doesn't helps, you could also choose the best iMovie for Mac alternatives instead. If your iMovie is now keeping crashing the latest macOS Big Sur, the following solutions may be helpful. If you were visiting Apple Community from time to time, you'll know there are people asking for solutions to fix iMovie crashing problem. iMovie could crash on startup, or while importing video from your Mac, or even when exporting your movie. Problem Fixed: iMovie Keep Crashing Big Sur macOS
