So I've created my iMovie project, closed iMovie etc. When I open up iMovie it defaults to a blank project...OK - don't see a way to say "open my existing Movie". So I close iMovie, locate the file via. Finder and double click the movie file. I opens iMovie...I see my movie and then's back to an empty project.

HELP!!! How do I get back to my movie I just spent hours on ??