Continuity mistake: When Jewel is having dinner at the lawyer's house and the lawyer is putting ketchup on his food, watch the position of the food. First the hamburger is in front and the potato salad is in the back, then the potato salad is in the front and the hamburger is off to the side, you can barely see it.
Continuity mistake: When Matt Dillon is watching TV ("I was watchin a lot of cable") there is a sack on the table beside him, but in the next shot the sack disappears and there is a different table lamp, and a newspaper and vase on the table. Then when he stands up, there is a piece of decoration behind the chair that wasn't there before. (00:39:20)