What is Key Grip?
1.
referred to in American and Canadian film-making, the key grip is the chief grip on the set, similar to a foreman at a construction site; the key grip directs a crew of grips, some with specialized skills such as dolly grips, crane operators, camera car operators, etc. generally, the key grip is the director;
"Fuckface! Who here's the key grip?" --Les Grossman questioning why the Tropic Thuder shoot was messed up.
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