Continuity mistake: When Monica gets out of her car after her first day at the bank, she stumbles over her shoes. She takes them off, talks to Q for awhile, and then heads into the house. Watch as she rounds the corner to the house (right when she gets to the hedges, watch carefully because she walks around the hedges fast) you can clearly see that she does in fact have her shoes on, without her putting them back on. She didn't even bend down like she should if she were putting them back on.
Continuity mistake: When Quincy is giving Monica a ride home after his basketball game, they are talking about how Quincy pushed Monica when they were younger while he was about to lose in a basketball game. She points to a scar on the left side of her chin with her left hand, and in the next shot, she is using her right hand to point at the scar.