Gemini Man

Gemini Man behind-the-scenes featurette shows how Will Smith's younger version was digitally created

Gemini Man has been in the pipeline since 1997 but was put on hold for many years to allow the visual effects technology to catch up with the film's concept.

Will Smith in talks to star in Ang Lee's new film Gemini Man

Will Smith's Gemini Man centers on an ageing assassin who has to fight against his clone, who is 25 years younger and in his prime.