The sequence after cut
On take 3 of scene 42C, the director wants another. The AD calls "Back to one, going again." What happens:
- Maya and Joe walk back to their first marks by the elevator.
- Background parkers return to their cars; the background PA checks each is in place.
- The dolly grip pushes back to the start mark; the 1st AC checks focus.
- Props replaces the keys in Joe's pocket. Wardrobe checks the jacket.
- Sound confirms ready. The AD asks "Everybody back to one?" and calls roll when ready.
Reset time and the schedule
"Back to one" tells you a take is being repeated, and each repeat costs reset time on top of the take itself. When the AD estimates how long a setup will take, they multiply that out. For scene 42C, a take runs about 50 seconds and a reset about 90 seconds. At an estimated 6 takes, that's 6 x (50 + 90) = 840 seconds, or 14 minutes, just for takes, before lighting and rehearsal time.
Now scene 88, where a bottle breaks on each take. The take is 20 seconds, but the reset needs a new breakaway bottle, cleanup, and effects checks: 8 minutes each. Four takes is 4 x (20 seconds + 8 minutes), roughly 33 minutes, and it needs four bottles plus spares on the props list. This kind of arithmetic is why a 1/8-page action beat can take longer than a full page of dialogue, and why the shooting schedule should note heavy resets.
Background and continuity
Background actors need to go to the same starting spots and repeat the same crosses so the editor can cut between takes. The 2nd 2nd AD or background PA assigns and checks positions. If a background actor in a red coat walks left in take 3 and right in take 4, the takes won't cut together.
The script supervisor notes changes too, such as an actor picking up the cup with the other hand, and tells the AD before rolling.
Mistakes
Rolling before everyone is back is the common one: the take starts with an extra still walking to position and gets cut 10 seconds in. The AD should get confirmation from background and props before calling roll.
Another is confusing "back to one" with "pick it up." A pickup restarts mid-scene and doesn't need everyone at their first marks. See pickup shot for that. And on the last take of a setup, don't call back to one; call the next setup so departments can move on.