Here are several examples from last fall's course, created their digital narratives with a variety of tools: VoiceThread, Screenr, MovieMaker or iMovie.
Script example used to develop this VoiceThread.
Embedded PowerPoint slide show used to develop the VoiceThread. Slides can be saved as JPEGs. These JPEGs or other images can also be used with MovieMaker, PhotoStory or iMovie.
screenr.com. (embedded directly from the screenr.com website)
Script for digital narrative:
Script done in Googledocs. Video created with MovieMaker and uploaded to YouTube: