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.

GEMINI MAN

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).

The Irishman

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.