Producers from the mini-series contacted owners Tyler Burgess and Kristin Murdoch last year about extending their business hours for the week they are in town.
"We jumped at the opportunity to do that," Mr Burgess said.
"Whatever we can do to help, we’re just saying yes to everything.
"Last Friday we had 70 or 80 of them in here."
It was important for them to support the production in the hopes of drawing more film-makers to town, he said.
"If we show our doors are open to this sort of thing, how many more times are we going to see the old part of town used in movies, Netflix series and documentaries?"
Waitaki District Council community and economic development manager Melanie Jones said the business sector had "overall, an incredibly positive response" to Netflix.
"People are just really excited to have such a big production coming into Oamaru. Obviously, different businesses have been impacted differently."
Those disrupted were expected to be "well compensated", she said.
"We will be getting a bit more information on that in the future, once they’ve wrapped up the whole project."
But the benefits for those able to service the production were being spread across the town.
While some businesses have closed, others have stayed open for longer to accommodate over 600 cast and crew.
Both of Fat Sally’s owners are working the night shift to give their front of house staff a bit of a rest, Ms Murdoch said.
She has loved welcoming so many newcomers to their pub.
While none of the Hollywood stars had walked through their doors, they were still holding out hope.
Fat Sally’s extended hours will be in place until the end of the week when production shifts to Dunedin.
