About rating and tagging video
iMovie offers three ways to let you mark video footage so that you can find…

Mark and unmark video as “favorite” or “rejected”
Your Event (source) video may contain sections that you don’t like or that you might…

Sort for video marked as “favorite” or “rejected”
You can show or hide Event video that you’ve marked as “favorite” or “rejected,” or…

Add comment markers and chapter markers
You can add comment markers and chapter markers to any video in your projects so…

Apply keywords to video
You can apply one or more keywords to any selection of video in an Event…

Find video tagged with specific keywords
You can sort your Event video to quickly find any frame range you’ve tagged with…