As an artist and guerrilla film-maker I love digital video. Digital video allows you to be able to creatively focus on the story you want to tell. These thoughts can be summed up in a few sentences:
1.
You do not have to go far to have good subject matter for a video/documentary.
2. Documentary video should be for everyone, so use any video format you have available.
3. The story "is everything."
4. Documentary videos can be made by anyone. Just remember rule #3.
Short video of art exhibtion that included 3 of my paintings and my video "I Volti di Carnevale" (Faces of Carnival).