How to take clips from Event Library and put in separate event folder?

Question

(I looked in iMovie Help menu but found no help.)
I recently did a file transfer from my Sanyo HD2000A which was a large accumulation of clips taken since last spring 2010. This was my first upload.
Now I have a lot of clips organized by date by iMovie '11. There are various categories of these clips, and one of them is +"Ducks in my back yard swimming pool."+ Another is a huge number of clips taken over time of three baby sparrows in the nest outside my window. It is a progression of how they are fed by their parents and how they grow and leave.
My plan is to get them into their own folders, filed by time/recency, and then pick and choose from those two folders/categories during the making of a movie which includes them along with other little adventures.
Question: How can I separate all of the duck clips and the sparrow clips so that they are each in their own folder and not spread out in folders organized by days?
=L

Answer 1

Lorna, I think I understand better now what you are talking about.
So on any one clip, it will be ducks, or sparrows, but not both.
You can create a folder in the Event Library called Ducks and another folder called Sparrows. These must be in the Movies/iMovie Events folder on your internal drive, or they must be in the iMovie Events folder at the top level of an external drive.
Go through your current Event folders. Drag the duck clips to the duck folder. Drag the Sparrow clips to the Sparrow folder. I would do a MOVE, but if you have enough disk space, you could do this as a COPY until you are sure that all works as you intend.
The next time you open iMovie, it will generate thumbnails and cache for these new Duck and Sparrow events. The events will be placed in the Event Library in the month of the most recent clip, even though the clips may span several months.
If all goes well, you can delete the prior events. If there is footage still in them (that is not sparrows or ducks, for example), you could delete the thumbnails and cache folders and let iMovie regenerate thumbnails and cache after it opens.
Also, Tom's advice about not moving or renaming anything you have already used is very appropriate...
If you have already created Projects using this material, this will break the links in your projects. (Unless you did a COPY rather than a MOVE above and left both the old and new folders intact.)