iMovie 1.0.x: Importing a Saved Frame PICT Looks Jittery on Camera

I saved a frame of my movie as a PICT file. I imported the PICT back into my movie project. When I export to tape, the still frame section of the movie is jittery and blurry. How can I resolve this?
When using the Save Frame As... function in iMovie, save your frame in jpeg format. When you import the file back into your project, that section of video will export smoothly back to the camera.
Published Date: Feb 18, 2012