Continuity mistake: At the market, Lee picks out five pieces of fruit (one apple and four oranges?), tears a produce bag off, and walks away. He takes a few steps off-screen, and he is next seen going around an end cap and walking down an aisle, with nine pieces of fruit in the produce bag. (00:01:36)
Continuity mistake: While initially walking on the train, we can see that the bottom of Regan's feet are filthy dirty, almost black on the bottom. She takes a few steps off-screen, and we now see her feet are cleaner. (00:40:00 - 04:01:00)