Los Angeles, CA – Will Smith is fighting the ultimate enemy, himself, in the new trailer for the Ang Lee-directed movie Gemini Man.

The trailer for the futuristic sci-fi action-drama was released Tuesday, April 23, by Paramount Pictures and Skydance Media. Scored to a sinister rendition of Alphaville’s “Forever Young,” the Academy Award nominee goes toe-to-toe with a 25-year-old version of himself.

“The emotional and physical challenges of making this film have been the most demanding of my career,” Smith told The Wrap. The film had been shelved by Walt Disney Studio in 1997 languishing for years until the technology to render the same actor decades apart was possible.

The cast also includes Clive Owen, Mary Elizabeth Winstead and Benedict Wong.

Gemini Man will open in theaters October 11.