Continuity mistake: When Frank pursues the killer at the lake house, through the snow-clad forest, his breath doesn't show. But he comes from a warm house directly out into a freezing night air.
Continuity mistake: In the scene where she takes him into the boutique, she goes into a dressing room with a curtain across the opening. The shot pans from looking over the curtain, where it has 5 ruffles, to Kevin Costner and then back over the curtain which now only has 3 ruffles even though she hasn't come out. (00:27:45)
Chosen answer: I think he was ticked off because he was being so personally affected by Rachel. He talks about being disciplined. He tries to keep emotions away from his job, but he liked Rachel. Also, Rachel at the time was angry with him, but also showed a lot of disregard for her own safety (as you remember, when he got back it was just after she and Tony went shopping without telling Frank). So yeah, I think it was frustration for the overall situation. To answer your second question, from the conversation with Frank at the lakeside house, Nikki had asked around at a club she went to, but she herself didn't hire Portman. Someone named Armando did the hiring.
Meg Charnley