-Same exact set of questions given to every person (open to exceptions)
-Lot’s of time and effort needs to be put into these questions (# should be at least 20 and there may need to be a cap)
– Actual editing/path of the movie may or may not fall out from this set of pointed questions.
-Lot’s of different backgrounds (i.e. interview each person in the natural setting (home, work, native city, etc.)
-If possible ask questions to same people in different backgrounds.
-Lot’s of music made by the people interviewed.
-This can be live and or recorded
Active Philosophy 
I like this. Especially important is #3. The interviews should provide direction but flexibility is key.