When Scarlet backs into Lorraine's car and pulls away, one sees the damage to Lorraine's vehicle. In the next shot the vehicle is undamaged and back in its original position.
In the opening scene Icee and coffee cups appear and disappear in the drink caddy.
When they are sitting on the car hood eating their roast beef sandwiches and the camera moves back and forth between Him and Scarlet, you can see that Him's arm in on his lap one moment (when looking from behind Him) and then he is leaning on the car the next (when looking from behind Scarlet). This goes on during most of the scene.
As "Him" is walking through the store, after the mop demonstration, he does not have a mop. But when they are outside walking to the car, he has one.
When Him and Lee are stocking Cheerios, they stock them on three shelves, at least twenty boxes wide. No store would do this, but it ,ight have been done for comedic effect. Same with the bananas.
In the opening scene in the van, as they are driving , the shifter is in park the entire time.
Impossible time line. After working eight-hour-shift at grocery store that ends in mid-afternoon (store opens at 7 a.m., meaning she gets off at 3 or 4 p.m.), Scarlet claims she must rush to job interview at construction site that supposedly would close at 5 or 6 p.m. But before going to interview she somehow still finds time to have fight with ex-husband and smash his girlfriend's car in a trailer park, go on shopping spree at Target, have car washed, go to fast food restaurant and have long philosophical discussion with another character - and still make an appointment a mere two hours later.