Other mistake: There have been many strange castings in movie history, but letting a character of African American descent, who is supposed to be light-skinned enough to pass as white, be played by blue-eyed Sir Anthony Hopkins, whose African roots, according to widely accepted ethnological theories, date some 40,000 years back, takes the cake. His young ego, played by Wentworth Miller, looks a lot more believable, but, luckily for him, the odds are close to zero that he will resemble Anthony Hopkins even faintly in 50 years from now.
Other mistake: At the end, when Nathan Zukerman talks to Faunia's ex on the frozen lake, there are no breathing clouds, while the sound of Nathan's boots in the snow suggests that it is bitterly cold. (01:33:30)