Continuity: In the evening following Nicki's funeral Frank and Fletcher have a talk. Fletcher's arm switches back and forth between lying on Frank's backrest and hanging down.

Continuity: Right after Frank gets shot he shoots Portman and you see someone helping Frank get his jacket off as he's lying on the ground. The camera angle changes and you see his jacket back on and someone is starting to help him take it off again.

Continuity: When Delaney hires Frank there's a sprinkler rotating in the background. When the camera angle changes it's gone, but at least the hose that runs across the lawn should be in the picture.

Plot hole: Rachel's and Sy's idea to perform at the Mayan took Frank by surprise. Later, when the situation escalates, he makes his escape though a secret side door (not the "official" back exit where he sends Tony), where earlier he had directed the driver with the limo. As he hadn't even heard of the club before and as he had no chance to check it out while they were there it's not quite clear how he acquired this detailed knowledge of the location.

Continuity: At the end of Rachel's and Frank's date the camera pans from the sword over some of his basement items on the shelves to the couple nestled between the sheets on the sofa, where Rachel states that never in her life she has felt as safe. However, when they wake up in the morning they are lying in his bed upstairs, and Frank opens a window that overlooks the garden. Considering their obvious comfiness downstairs this change of location can't be explained.

Continuity: 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.

Continuity: 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.

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.

Continuity: 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.

Deliberate "mistake": Whitney Houston's charater, Rachel, is arriving at the Oscars and waves at the fans outside. A fan is holding a sign and it spells her name as "Rachael". When Rachel wins her award, her name on the TV is spelled "Rachel" [Might not be a mistake - might be an intentional representation of the limited intellect of some of her fans...]