iMovie '11 arranges my movies by date and they are all mixed up now. For example, 2012 December has events 120708 (a july 2012 event) and 120711, 120812. Also when I open over half the events, all the clips are missing.
1. I have all movies on external hard drive
2. I have just added all photos (221 GB) to the same 2TB hard drive
3. Movie events are missing when I try to look at them in iMovie but if I click open my hard drive (like in finder) I can see the clips in each movie event there.