Exporting to iMovie from iStopMotion 3

I purchased iStopMotion 3 from App Store and have created and saved a short test sequence. When I tested the export to iMovie feature nothing happened – no export dialog like in the Getting Started video. Am I missing a step?
I am using iMovie '11 on a late 2008 MacBook Pro running 10.8.1.

Try running Disk Utility.
Applications> Utility Folder>Disk Utility>Verify Disk Permissions>Repair Disk Permissions>Restart

See article: http://support.apple.com/kb/HT1452?viewlocale=en_US&locale=en_US