The Ken Burns effects adds movement to your still images in your video projects. But picking a start and end crop area inside the photo, iMovie will move the photo over the duration of the clip. You can use more then one Ken Burns effect in consecutive clips in creative ways.
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Hi Gary- I'm in Ken Burns but can't see the two rectangles.
George: Not sure why that would be. Just try again. Select another clip, select Ken Burns just as I show in the video, and see if they appear then.