Effect: Slow Motion

Description
Slows down the clip by smoothly interpolating frames. This gives more control and a smoother result than using iMovie's built-in clip speed control. See the important note below.

Controls

Slowdown:

Determines degree to which the clip is slowed down.

Notes
IMPORTANT: Since an effect plugin cannot change the duration of a clip, as the clip is slowed down the remaining portion is lost. For example, if you slow down a clip by a factor of 3x, then the first third of the clip now takes as long as the entire original clip. Therefore the remaining two thirds of the clip are lost. To avoid this, make sure that there is enough extra space at the end of your clip. For this, you may need to turn off the "Automatically start new clip at scene break" setting in iMovie's Preferences panel.