When Amy and Jonah are arguing about the ice cream and/or unionizing, two female employees are walking towards them from behind. When the angle changes, the two employees are gone, but after several more cuts, they are back and walk past Amy and Jonah.
When Amy first notices that Kelly is there, Sarah moves from the far right of the group to directly behind Kelly and back between shots.
When Kelly is speaking to the ICE agent, her hands repeatedly change positions between shots.
When Marcus is explaining his plan to have Mateo hide in the trash compactor, his fingers slips and starts the compactor running. Compactors of this type have a safety cage that has to be lowered over the front during operation. The compactor cannot be operated with the cage raised.
After Jonah complains he doesn't make a livable wage, Amy snaps that she helps him with that because she pays the rent. Amy owns her home. If she's making payments, they'd likely be mortgage payments, not rent.
When giving Mateo's description over the radio, an ICE agent describes him as wearing a black hoodie. Mateo's hoodie is dark blue.