I'm using this software from my iPad 3... Every time I press the export button & Facebook, a pop up appears saying "ACCOUNT REQUIRED: To set up an account tap the Home button, then tap Settings, then Facebook"... Problem is, imovie has no home button that I can see, so what do I do???... I have googled it & it says it asks me to log-in -- it doesn't... I just keep getting the same message. Any ideas??
Tap the Home button. That should take you out of iMovie so you see all your apps. Touch the one called Settings. Then in settings, scroll down until you see the FaceBook settings.
If you don't have the FaceBook app installed, you will need to go to the App store and get it.