Why Capturing Bigfoot Does NOT Debunk the Patterson-Gimlin Film

One question being asked and not answered (that indicates the film is real) is how did they extend the arms and move the elbow? 

Watch "Why Capturing Bigfoot Does NOT Debunk the Patterson-Gimlin Film" on YouTube

https://youtu.be/rwyH8RJASDg?si=MHcuxldQhk6lp0Ge