Adjust effects in the viewer in iMovie on iPhone
The viewer in iMovie includes controls for adjusting effects, including how big or small video clips appear during playback, how photos move using the Ken Burns effect, and how video overlay effects such as picture-in-picture appear.
Adjust the movement of photos with the Ken Burns effect
iMovie applies the Ken Burns effect to the photos you add to your project. With this effect, the camera appears to sweep across and zoom in and out of the photo. If there are people in the photo, iMovie uses face detection to keep faces within the viewing area.
You can adjust the Ken Burns effect so that the motion starts and ends on the parts of the image you specify.
In the timeline, tap the photo you want to adjust.
The Ken Burns effect controls appear in the lower-right corner of the image in the viewer.
To set the way the photo is framed at the beginning, tap the Start button .
Pinch to zoom in or out, then drag the image in the viewer to frame it the way you want.
To set the way the photo is framed at the end, tap the End button .
Pinch to zoom in or out, then drag the image in the viewer to frame it the way you want.
To close the controls, tap outside the clip.
To turn off the Ken Burns effect for the photo, tap Ken Burns Enabled . To turn on the Ken Burns effect, tap Ken Burns Disabled .
Adjust a video clip’s zoom level
With your project open, tap to select a video clip in the timeline.
To set the viewing area within the clip, tap the Zoom Control button in the viewer.
Pinch to zoom in or out, then drag the image in the viewer to frame it the way you want.
To preview your adjustments, tap the Play button .
Adjust video overlay effects
With iMovie, you can add video clips and photos as overlays, which appear on top of the main clip in the timeline. Overlays can be arranged in the same way as any other clip. There are four overlay options:
Cutaway: Adds the clip so that during playback, the movie “cuts away” from the main clip in the timeline and shows the cutaway clip instead. The audio of the main clip is still heard.
Picture in Picture: Adds the clip so that during playback, the clip appears in a smaller window, superimposed on the main clip in the timeline.
Split Screen: Adds the clip so that during playback, the clip appears next to the main clip in the timeline. By default, the two clips appear side by side, equal in size, but you can swap the orientation of the clips so one clip appears above the other.
Green/Blue Screen: Adds the clip so that during playback, the clip appears with the green-screen or blue-screen parts of the clip removed, and the remaining parts of the clip are superimposed on the main clip in the timeline.
Use the viewer controls to adjust how your cutaway, picture-in-picture, split-screen, or green-screen or blue-screen clips appear during playback.
With your project open, tap to select the overlay clip in the timeline.
The overlay clip becomes outlined in yellow, and additional controls appear in the viewer.
Do any of the following:
Reposition or resize a picture-in-picture clip in the viewer: Tap the Position Control button , then drag to reposition the overlay clip or pinch to resize it.
Remove or add a border around a picture-in-picture clip in the viewer: Tap the Border button .
Swap the orientation of split-screen clips in the viewer: Tap the Swap button .
Remove or add a line between split-screen clips: Tap the Line button .
Set the viewing area within the clip: Tap the Zoom Control button , then pinch to zoom and position the viewing area within the overlay clip.
Change the amount of green or blue removed from a green-screen or blue-screen clip: Tap the Adjust button , then drag the Strength slider left or right.
Choose a different colour to be removed by the Green/Blue Screen effect: Tap Reset, then tap a colour in the clip.
Automatically select the blue or green colour to be removed by the Green/Blue Screen effect: Tap Reset, then tap Auto.
Exclude parts of a green-screen or blue-screen clip overlay: Tap the Mask button , then drag the corners.
Reset all adjustments: Double-tap the Zoom Control button , or tap Reset.
To preview your adjustments, tap the Play button .
Change the overlay type
After you add an overlay to a project, you can change the overlay to a different type.
With your project open, tap to select the overlay clip in the timeline.
The overlay clip becomes outlined in yellow, and additional controls appear in the viewer.
Tap the Overlay button , then do one of the following:
Change the overlay type to cutaway: Tap Cutaway.
Change the overlay type to picture-in-picture: Tap Picture in Picture.
Change the overlay type to split-screen: Tap Split Screen.
Change the overlay type to green-screen or blue-screen: Tap Green/Blue Screen.