filmstrip
A connected series of thumbnail images representing a video clip. Filmstrips appear in the timeline (where you build movies) and in the browser (where your clips are displayed). A single video filmstrip might represent several seconds of video encompassing hundreds of individual video frames. Audio-only clips appear as audio waveforms, showing the change in the audio volume over time.
You can adjust the appearance of filmstrips in the browser and the timeline so that it’s easier to make selections. For example, expanding the width of a filmstrip (by showing shorter durations per thumbnail) helps you make more precise selections.
![Video filmstrips in browser](https://help.apple.com/assets/657CD3DE95505DC352004EFC/657CD3E295505DC352004F02/en_US/4d52294889e86bde3af53f28f40e4c3a.png)