This depends on Where You stored the iMovie Events and Projects.
A good rule is to - NEVER touch, move or adjust any folder named
• iMovie Projects
• iMovie Events
keep all external hard disks connected.
In iMovie application You can move Events and Projects in each window and to any compatible hard disk connected.
External hard disks - HAS TO BE - Mac OS Extended (HFS) formatted -
• UNIX/DOS/FAT32/Mac OS Exchange WILL NOT work for Video (but for nearly everything else)
Yours Bengt W
How do I find out the file name of the original clip(s) so I can reconnect them (somehow?) to iMovie? I have no idea whether I moved them. It may be that I am not saving iMovie 11 files the way you need to, e.g., I just moved all the freakin' folders off my internal hard drive and onto an external. All my other Projects are working fine. It's only the one I actually need that says "Source clip is missing."
I could go find it in Time Machine if I knew what I was looking for... or Spotlight... or do some kind of grep in Terminal at the Unix level.