Your documentary will benefit you. As you learn more about sheep, what you do with your sheep, pictures of your sheep, it will all be there for you to refer back to. Any illness and treatment will be recorded, worming schedule, and things of that nature. I say go for it.
My sheep go to camps with kids and we have started a program to educate people on sheep. These sheep have gone through hell. Their mothers abandoned them all and I have friends with autism and Downsindeome and me having sheep has benefited them. They just randomly drop by and talk to the sheep and they have pocket wool that they carry around 24/7. Basically my sheep are therapy sheep.