This wikiHow teaches you how to split a video clip at a selected moment, and make a cut in iMovie, using a Mac, iPhone or iPad. iMovie is Apple's official video editing suite for all desktop and mobile MacOS and iOS platforms. You can use...
Method 1 of 2:
Using a Mac
Open the iMovie app on your computer. The iMovie icon looks like a purple
video camera icon in a white star on a purple background. You can find it on the Dock or in your Applications folder.
Select the video project you want to edit. Double-click a movie or video project on your "Projects" page to open the editing suite.
Find the exact moment you want to cut your video. Play the video clip in the editor in the bottom half of your screen, and pause it at the exact moment you want to cut.
Press ⌘ Command+B on your keyboard. This keyboard combination will automatically split the clip into two parts at the exact moment where the white, vertical video line is located.
Right-click on the moment you want to cut in the video (optional). As an alternative to the keyboard shortcut, you can just hover over the video clip in the editor at the bottom, and right-click on the exact moment you want to cut.

Select Split Clip on the right-click menu. Just like the keyboard combination, this will cut your video at the exact moment you select.
Left-click on the moment you want to cut in the video (optional). As a final solution, you can skim through the video, and select the moment you want to cut with a simple left-click.
Click the Modify menu on the menu bar. This button is on your Mac's menu bar at the top of your screen. It will open a drop-down menu.

Click Split Clip on the Modify menu. This will cut the video at the exact moment you selected with your left-click.
Method 2 of 2:
Using an iPhone or iPad
video camera icon in a white star on a purple background. You can find it on your home screen or in an app folder.Tap the project you want to edit. Select the video or movie project you want to edit on the "Projects" page to open its details.
Tap the Edit button. You can find this button below the video thumbnail and title. It will open the selected video in the editor.
Tap the video roll in the editor at the bottom. This will show a yellow highlight around the video roll in the editor, and display your editing tools at the bottom of your screen.
Select Actions on the bottom toolbar. This button looks like a scissor icon. It will show your video actions.
Tap Split above the toolbar at the bottom. This will cut the video where the white, vertical line is located.
Update 04 March 2020
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