About filmstrips in the Project browser and Event browser
iMovie displays your video footage in the Project browser (where you build projects) and Event…

Step through video frame by frame
Each video clip in iMovie (whether in a project or an Event) is represented by…

Select one or more video clips, or specific project elements
You can select a single clip or multiple clips at a time in a project…

Select a range of video frames within a clip
You can select a range of video frames from any clip in an Event or…

Set automatic frame range selection in Event video
When you click a video clip in an Event (source video), iMovie automatically selects a…

Locate source video for your project clips
You can quickly find the source video (Event) for any video clips you’re using in…