iMovie direct recording disappeared
I recorded a movie yesterday for an interview assignment, (20 minutes) directly into my iMac iMovie. I cannot find it anywhere now; when I click on the title in iMovie media section there is no clip. I may have had the "Hide Import" box ticked (the default), but have looked in the iMove library by Control-clicking to access "Show Package Contents". The "Original media" folder is empty, but there are items in the render media folder.
System is 10.11.4, iMovie is 10.1.1
Help appreciated.
iMac, OS X Mountain Lion