iMovie cover photo
Can we change the photo on the face of the project in the library?
Question marked as
iMovie randomly selects the display thumbnail from a frame in the midpoint in the movie. There is no feature to allow for selecting your own customized thumbnail. However, you can add a black background at the end of the movie, of suitable duration, to change the midpoint of the movie, and thus the displayed thumbnail. It would be a different thumbnail, but iMovie would still randomly select it, so you couldn't control what frame was chosen for the thumbnail.
But Take a look at a different solution in this thread:
https://discussions.apple.com/thread/252148394
-- Rich