Wiktionary
n. (context cinematography English) The team that shoots footage which is of primary importance for the final cut of the motion picture, including all scenes involving actors, or at least stars of the motion picture.
Usage examples of "first unit".
Where the destruction of the first unit could have been called an accident, here was tangible evidence of a deliberate attempt to stop the whole project.
We'd been ready to move out for two hours when his first unit showed up.
There was still one spare AE-35 unit - and possibly a second, since they had removed the first unit before it had actually broken down.
How do we know that they won't join the first unit they come across, get themselves rearmed, and come back looking for blood?
A popular, needed technology, lots of deployments, maybe a training center in the future for the first unit that gets the weapon-the states see an opportunity for big revenues from this.
The first unit had been strangled into a non-functional state, and operations were under way upon the second, when orders were abruptly changed: OCTAGON's own human component had suddenly declared AGRAVAN an ally.
She's out of the first unit, and into something they call the Stabilization Unit.