Just upgraded to Mountain Lion and now Imovie won't open. It tries, but then shuts down with error message. Tried repairing disk permissions and rebooting. Any Help appreciated.
iMac, OS X Mountain Lion
Earlier this week Apple released an update to iMovie that has fixed this for a lot of people. Are you running version 9.0.7? You can update to it by running Software Update or checking the Updates tab in the Mac App Store. If it's still crashing after the update, this seems to be doing the trick for a bunch of people: http://support.apple.com/kb/TS4319
Thank you - your solution to remove that one file worked!
Imovie won't open since upgrade to Mountain Lion
