The download in the App Store can't be installed, restarted, or deleted.
This is for iMovie 10.0.1 as of December 23, 2013. I followed a discussion forum and tried a suggestion that said remove the application from finder. Unfortunately, this left me without the iMovie application and did nothing to change the status of iMovie from "downloaded". So, I can't even start over or resume. Is there a clean way to get out of this mess? The forums go on and on with various solutions and responses that say that one "…worked for me!".
My system software is OS X 10.9.1 running on a MacBook Pro Retina 15-inch, Early 2013.