First movie stuntman:

1908
During the filming of "The Count of Monte Cristo," a hypnotist from Los Angeles was conscripted to dive into the surf wearing a blond wig. He was paid $5.
Source: The New Yorker, 10/20/2003

 
   
  Name for Gaffer's assistant:

Best Boy

Source: Toronto Star, 12/22/200; Entertainment Weekly, 1/18/91, 1/1/1900

 
   
  Name for the person who sets up equipment on a movie set:

Key Grip

Source: Toronto Star, 12/22/2000; Entertainment Weekly, 1/18/91, 1/1/1900

 
   
  Name for the chief electrician on a movie set:

Gaffer

Source: Toronto Star, 12/22/200; Entertainment Weekly, 1/18/91, 1/1/1900