I tried this out as a model for groups of Japanese study tour students with a pre-intermediate level of English. The idea was that they would use this to develop their own digital "In a flash" story based on a special event, experience, person, place or object.
The time I spent with each group varied, but on average I had about 4 one and a half hour sessions with them (6 hours), in addition to the final screening (1.5 hours). The software we used was Photostory 3 (free Microsoft movie making software). Photostory 3 doesn't have the same scope as Movie Maker, but for simple, short-term enterprises, it is easier to use.
Some examples of student work will be posted here if and when permission is granted.