Continuity mistake: When Greta sits down with the shotgun, it is pointing directly at Lou, horizontally angled. However, after a cut, the gun is suddenly pointing diagonally, at an angle. It is also strange that Lou, a former police officer, doesn't caution his novice granddaughter against pointing a loaded gun at him. (00:40:15)
Continuity mistake: When Gus arrives to visit Molly in the hospital, he brings her a bouquet of flowers. He sets the flowers on the roll-away table stationed over the end of the bed, and the blooms are facing towards the window. When the scene cuts to a different angle as he is walking toward Molly, the bouquet is now completely turned around and the stems are pointing at the window, even though Gus did not touch them again.
Other mistake: In the scene in 1987 which takes place where the movie did, the location of the case of money is different than it was in the film. In the film there were no power lines and it was on the opposite side of the road. The sun angle can be used as a reference. The film and this part of the episode were supposed to take place in the same spot.