You can crop a video on your Mac computer using iMovie, with a few different cropping options. Here's how to do it.

In this video, I'll show you everything you need to know to edit a video project with iMovie from importing videos and photos to exporting and sharing the video via YouTube or email. 1. Press plus to ...

How to Use Green Screen in iMovie The green screen in iMovie is one of those things that is not very obvious. You have to set up your timeline correctly before you can see the green screen option.