iMovie closing after opening

I have the same experience with my Late 2011 15-inch Macbook Pro running on Mac OS X Yosemite 10.10.2. The version of iMovie having this issue is 10.0.7.

Upon launching the app, it will load all events and projects, but then will just crash every time.

I was thinking of restoring from my Time Machine backup but afraid I may lose all my latest projects/events (will it, or will it not?).

Hope someone can suggest a way to fix this. Cheers.

I had problems with iMovie not opening after the update to 10.0.7. Myself and others have had success using the steps below, you could give it a try...

1. Locate your iMovie library in Finder (probably in ~/Movies).

2. Ctrl-click on it, and click Show Package Contents.

3. You should see a list of folders, one for each Event in your Library. Inside each Event folder, look for a folder called Transcoded Media. Inside that folder, look inside the folder called High Quality Media.

3. If you see any files with a filesize of zero bytes, delete it. (You could back up each file before deleting if it makes you more comfortable, but I had no problems just deleting them)

4. Relaunch the application.

After I performed these steps iMovie 10.0.7 launched fine for me again... Hope it helps you also.