When Saul is showing the box factory, the trio talk about a corrugater machine. But Adam Bernstein, the director, notes on the podcast that this wasn't the real corrugater because it was out of place for shooting, but similar. Interestingly, Vince says he also worked in a cardboard box factory for a couple of days. The tortilla factory was not originally in the script, they found the location as they were scouting and Aaron added the part where he grabs the tortilla at the end. The crew had to buy out the factory during the shoot because of the cleanliness restrictions.