Second Second Assistant Director

Himself is on his way home from seeing The Bourne Ultimatum and calls me.

"I think I've found a job in the movie industry I qualify for."
"Oh? What's that?"
"Second Second Assistant Director."

Of course, now I need to know what a Second Second Assistant Director does, so I Google it. A Second Second Assistant Director is "[a]n assistant to the second assistant director; responsible for (among other things) directing the movements of extras." That quoted definition comes from the IMDB Movie Terminology Glossary. Now, I loves me some IMDB for looking up various movies and TV shows and actors, but who knew they had a glossary?