Continuity mistake: The birthmark on Rachel's upper lip undergoes some make-up related changes throughout the movie. However, it shouldn't have disappeared completely between the moment she says good-bye to Frank on the airport and when she sits in the plane a few seconds later. (01:56:45)
Visible crew/equipment: Towards the end of the fight in Frank's kitchen, when Tony pulls the knife out of the holder, look at the bottom right side of the glass front of the cupboard in front of a pile of plates: There is a beautiful reflection of a crew member in a white shirt giving signs with his arm. (00:41:40)
Continuity mistake: When Frank is in the pool house watching Rachel's music video, one minute he is leaning forward in his chair to watch it, and the next you see him sat back in the chair and then he starts to lean forward. (00:29:40)
Factual error: Outside the Oscars, the camera pans around to show the crowds and the security guards on the surrounding rooftops. One is holding a rifle which he should be, however there is another guard standing next to him overlooking the crowd holding a shotgun. This makes no sense at all, if he were to ever use that weapon from his position he would hit dozens of people.
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)