At 23,Will Smithwas a Grammy-winning rapper and star of his own hit TV show.
Now, 28 years later, the world will once again be watching 23-year-old Smith and seeing double.
But theGemini Manteam is quick to distance their film from any others.

Credit: Paramount Pictures
Lee worked with New Zealand-based Weta Digital to carry out his vision.
Its not an augmentation, its a complete replacement.
The process was a bit simpler for Netflixs Martin Scorsese-directedThe Irishman(Nov. 1).

Niko Tavernise/Netflix
But it wasnt without its challenges.
But what does this mean for movies moving forward?
I think theres a limit, says USC film professor Michael Fink.
As Lee recently said: I dare anyone to try.
Junior is twice as expensive as Will Smith.
Gemini Man, which also stars Clive Owen and Mary Elizabeth Winstead, opens in theaters on Oct. 11.