All stills added to iMovie are blurry during playback I am desperately trying to finish this iMovie video for someone and I am having difficulty with the playback of my still images.  They look great/normal when scrolling through the storyboard, but as soon as I press play the images blur.  I am using iMovie 10.0.5 on a MacBook Pro from 2009.  Any help would be beyond greatly appreciated! Thank you!
Have you tried exporting your video? Sometimes iMovie downscales things while playing it back in the application.

If that doesn't work try copy and pasting your project timeline into a new project and re-insert the images you have.