
If the frame below the playhead isn’t representative of the rest of the clip, reposition the playhead and reapply the effect. The color that iMovie removes is based on the dominant color in the frame at the position of the playhead when you choose Green/Blue Screen from the pop-up menu. Because the clips are connected, the two clips move together if you rearrange clips in the timeline. In the viewer, iMovie removes the green or blue from the green-screen clip to reveal the background clip behind your subject.

#Edit movie in imovie mac
Trim and move the background video clip to match the length of your green-screen clip. If you are a Mac users at the same time, you can sync the YouTube video from Mac to your iPhone, then add the video to iMovie for editing. Add music and soundtracks in iMovie on iPhone.Add the green-screen clip above the background clip in the timeline.


You can select a widescreen display (16:9), a standard display (4:3), or a display especially suited for an iPhone (3:2).
