If the frame below the playhead isn’t representative of the rest of the clip, reposition the playhead and reapply the effect. The colour that iMovie removes is based on the dominant colour in the frame at the position of the playhead when you choose Green/Blue Screen from the pop-up menu.

Then, click on your green screen footage and drag it down to the timeline and put it into the track above the background image/video. As the clips are connected, the two clips move together if you rearrange clips in the timeline. Drag the background clip into the timeline, you can crop, trim, adjust this background image/video as you like. In the viewer, iMovie removes the green or blue from the green-screen clip to reveal the background clip behind your subject.

If the video overlay controls aren’t shown, click the Video Overlay Settings button above the viewer, then choose Green/Blue Screen from the pop-up menu.

For our space voyage, we used this green screen asteroid clip over this space shuttle footage. Just go to File > Import Media or hit Command/Ctrl + I on your keyboard. As the clips are connected, the two clips move together when you rearrange clips in the timeline. Import Media First things first, you’re going to want to import any footage or audio you’ll be using for your project.

Trim and move the background video clip to match the length of your green-screen clip.

Add the green-screen clip above the background clip in the timeline.1 These instructions assume you have filmed in front of a green screen however, they also. Step 3: Post the video privately Keep your device’s Save to Device option turned on. When you see the green Add Icon (+), let go of the mouse button. After that, tap anywhere on the screen to return to the original screen. With your project open, add the background video clip or still image to the timeline. Step 2: Add sound to the video To add sound, select your preferred sound from the library by clicking the Sounds option in the lower-left corner.

How do you add a green screen to imovie