I would like to hear more on this thought! To me, I would say that when you compare the effort needed to create the "final" print of the film (the one with the

I would like to hear more on this thought! To me, I would say that when you compare the effort needed to create the "final" print of the film (the one with the CG and professional actors) vs an early test take made with your family, the delta between the cost of the two would be very high. I feel that a closer metaphor would be that a good treatment and a demo are the "pitch deck" for the real film you want to make, not first versions of it.