20 Things You Somehow Missed In The Prestige
3. Nikola Tesla's Different Coloured Eyes
The Prestige involves the discreet use of computer generated imagery (CGI). For instance, in the sequence in which Angier arrives in Colorado Springs, Christopher Nolan digitally erased buildings at Darien Ranch in Marble in western Colorado in order to create a railway station.
However, whilst fans of David Bowie may know this already, fans of the film may not: Bowie's Nikola Tesla has different coloured eyes.
This is because Bowie himself had different coloured eyes resulting from a fight that left his right eye permanently dilated, so that it appeared light blue in colour, whilst the other was brown. Bowie later claimed that his assailant did him a favour, since his different coloured eyes were a defining characteristic of his.
However, it is unknown why Nolan did not use CGI in order to make them both match Tesla's own blue eyes. However, to try and explain it in the film, Tesla informs Angier that his eyes changed from a darker to a lighter colour because his work requires so much serious thought.