Documentary

I’m making a documentary on the history of female menstruation...
It’s a period piece.
I've just watched a T.V. documentary about beavers.
It was the best dam program I've ever seen.
I watched a documentary about corn fields
It was really quite amaizeing
I'm making a new documentary on how to fly a plane.
We're currently filming the pilot.
Why did the electricity documentary get such mixed reviews?
People weren’t sure how to feel after it’s shocking ending.