iMovie iPhoto video events not in sync with iPhoto Events

iMovie iPhoto events is not the same as my iPhoto events. I have recently amended a few events in iPhoto and to which I am satisfied with. However, iMovie is still showing the old events. For example (EVENT Holiday would contain two holidays originally - so I split this in iPhoto and that is displaying well. iMovie is still showing the old event with both holidays).

I've tried rebuilding iPhoto - all four options - and deleted the iMovie plist (think that is what you call it) but to no good conclusion. Please help?