The correct answer to this open question is the following.
If I were going to go to a movie about the person that invented the "motion picture," the movie title I would choose would be "The Lumiere Brothers."
I'll go with a classic one. The story of the Lumiere Brothers who invented motion picture: the French brothers Louis and Auguste. In 1895 they invented the Cinematographer. It was a portable camera that had a protector and a film processor. This allowed the motion picture. They exhibited a film of fifty seconds, showing some workers leaving a factory in Lyon, France.