Directed by: D.J. Caruso
Starring: Kiefer Sutherland, Ethan Hawke, Angelina Jolie, Gena Rowlands, Tchéky Karyo, Olivier Martinez
Plot hole: Most of the story depends on Costa coming forward as a witness; however, he would have had no reason to do this. It would only make his goal of assuming others' identities more difficult.
Suggested correction: Some serial killers try to involve themselves with the investigation, for instance famous serial killer Ed Kemper.
Continuity mistake: When Angelina Jolie destroys the mirror, you can see (just freeze the shot for an instant) that the mirror has been broken completely. Yet, in the next shot, she watches her reflection and there's still a lot of mirror unbroken. (01:31:30)
Martin Asher: That guy was nothing, all right? I didn't take his life, I lived it. I was the best thing that ever happened to that guy. You looked at him, and you saw me, and I looked at you, and I saw you, and we are the same.
Trivia: Kiefer Sutherland only has 17 lines in the whole film.
Question: After they find the body in Asher's apartment, and the cops are securing the scene, Paquette says, "lab results for Acosta's DNA came in...he's clean" How did his DNA clear? It came back as James Acosta?
Answer: As "Costa" was initially a suspect, the police took a DNA sample, which did not match any DNA on file - that was what they meant by "he's clean." It basically means that Asher was very careful at not leaving DNA evidence (other than that of others like Hart to frame them). Presumably the real Costa had no DNA profile linked to his identity on file either, or it could have returned a mismatch and revealed Asher's deception.