IN MY OPINION;
WILLIAM REYNOLDS:
MORE MOVIE INDUSTRY STUFF:
So exactly what is a 'KEY GRIP" seen on the movie credits?
Movies hire a key grip. Key grips are responsible for lifting, moving, carrying, transporting, rigging, operating, building, and placing production equipment where it needs to be. They take orders from the director of photography and supervise a crew of grips and best boys.
Normally a 'best boy' is a Gaffers (electrician) assistant but also assist in other areas as well