How to Rename an iMovie Library
ZachThis short guide will show you how to rename your library in iMovie. This is especially useful if you maintain multiple iMovie libraries -- for example, one on an internal and one on an external hard drive.
Double-click your iMovie Library.imovielibrary file to open it in iMovie.
In the sidebar under the LIBRARIES heading, click your library name once (the default library name is iMovie Library).
Wait a few seconds and then click it a second time. You will now be able to edit the name. Type the new, desired name (for example, External iMovie Library) and press your Enter key.
You're all done!
This guide will show you how to move an iMovie project to another Mac or to an external hard drive.