Revealing mistake: When Simone is performing in concert, the auditorium is supposed to be packed full. But when the camera flies over the audience, in the background you can see empty space because only about 100 extras were recruited for the audience. (01:04:00)
Revealing mistake: When Hank shows Viktor the newspaper article "Taransky's future in doubt", the article to the left of it "Anders Exit Sets Sun", has repeated paragraphs in it, beginning "Working with nearly every one of Hollywood's leading men..." (00:09:40)
Revealing mistake: Near the end of the movie, Al Pacino has been arrested and is in a cage. When he demands to be let out, he grabs the cage and it wobbles, showing it's not fixed to the ground.