Press and hold the R key while dragging over a clip in the timeline of the iMovie project from your Mac, in order to choose the range of frames you wish to save.

You can trim unwanted frames using the shortcut menu as follows: What Is The Shortcut to Cut a Video in iMovie?

Once you’re done editing your video, you might need to know how to share an iMovie project on Mac and iOS. The shortest time that iMovie supports is 0.3 seconds, so the app will not let you shorten a clip beyond that limit. Like before, you won’t be able to extend a clip beyond its initial limits because there won’t be any more footage to show.

To lengthen the clip, drag the clip’s edges away from its center.

To shorten the clip, drag the clip’s edges towards its center.

It will look like two arrows indicating the directions in which you can trim the clip.

Next, hover your pointer over the beginning or the end of your video until it becomes the clip trimmer tool.

This will make it much easier to work with.

For a closer look at the clip, choose View > Zoom In then hit the Command and Plus sign ( +).

Go through the timeline of your open project until you find the clip you want to cut and click on it.

How Do You Trim a Video in iMovie on Mac? However, if you’re still set on modifying the length of the video, you should try to slow down your clip in iMovie. If you are trying to make the clip shorter than it is, but it seems like it’s not working, it’s possible the clip is exactly 0.3 seconds long, which is the shortest duration iMovie will allow. That’s because there is no more footage at the beginning or the end of that clip. You won’t be able to drag the clip’s edges. If you’ve added a 10 second video clip, you won’t be able to make it any longer. To make the clip longer than it is, drag its edge (from the beginning or end, depending on your preference) away from the clip’s center.

To shorten the video, drag its edge (from the beginning or end, depending on your preference) towards the clip’s center. Drag the edge of the video closer to or further from the center to adjust its duration.Use the pinch-and-open gesture in the middle of the timeline to achieve this. This will make it simpler and quicker to edit.

If you zoom in, you’ll be able to see more of the clip’s details.

Tap the video clip or photo in the timeline in order to display the yellow highlight that allows you to trim the selection. Here’s how to adjust your clip lengths in iMovie on your iPhone or iPad.

How to cut in imovie on mac