Corrected entry: When Rona comes to Mollie's house after being robbed, Mollie's brother points the gun at her, they start talking and Rona says “Mollie never told me she had a brother!” Soon after when she gets her bag that she threw on the couch, Rona says “Mollie's said some nice things about you.” Meaning Rona did hear about him before, although she said she didn't know Mollie had a brother.
Corrected entry: In the scene where Molly is giving Stuart some money, right before she and James have a big argument, listen carefully to what she says to Stuart. She says "I don't want you taking the subway...there are a lot of weirdos out there so here take some money for the subway." It was an obvious mistake that I guess the director either didn't notice or didn't want to take out.
Corrected entry: When Kirstie introduces her friend to her brother Stuart, her friend says "I never knew you had a brother!" and then about a minute or so later she says to Stuart, "I've heard so much about you!"