Continuity mistake: Nicole punches the number pad of a telephone receiver, damaging it. Later, Anais picks up the same phone receiver, but the number pad is fixed. No one but Richard touched the phone in the meantime, and he did not fix the phone, either.
Continuity mistake: A man drops a DVD case in the video store. Two shots later reveal an empty store with no DVD case on the ground.
Continuity mistake: Richard's flashback shows him throw money onto the counter. In the next shot, The Money disappears.