iMovie on iPad 2 will not export to camera roll
I just put together a 6 1/2 minute iMovie on my iPad 2, and I cannot export it to the camera roll (in any resolution). There are a lot of videos, photos (taken with three different Canon digital cameras, panoramic pictures created with the Autostitch application, and photo montages created with the Montage application. The videos include very long segments (1 minute plus) of which I am only using 6-7 seconds. The progress bar when attempting to export shows no progress, even after hours of working on the video. Occasionaly, iMovie says it cannot export the movie.
Any ideas about what is wrong?
I can export simple, small movies, but this was a pretty ambitious project, and I'm not having any luck with it.
Albert
iPad 2, iOS 4.3.2