What happens when you put Gong Yoo and Park Bo Gum together in one movie? Watch the first trailer for their upcoming science fiction film “Seo Bok” to find out.

Park Bo Gum plays the titular character Seo Bok, who is the world’s first human clone. Meanwhile, Gong Yoo portrays Ki Heon, a former intelligence agent who comes across this incredible breakthrough — and who must then protect Seo Bok when all hell breaks loose.

Who wants to live forever?

“Seo Bok” has been confirmed for a December release.

According to this Soompi article, the poster for Park Bo Gum hints at an extraordinary ability of this human clone.

“Meanwhile, Seo Bok is said to ‘live forever’ as ‘someone who never dies,’ and his silhouette creates a sense of mystery. The posters raise questions about how Ki Heon and Seo Bok will interact as complete opposites.”

Gong Yoo and Park Bo Gum are two of the most popular South Korean actors.

Gong Yoo is best known for the TV drama “Guardian: The Lonely and Great God” (or, as it’s commonly known, “Goblin”), and the South Korean action horror film “Train to Busan”.

Meanwhile, Park Bo Gum is known for playing a wide variety of characters, including a crown prince (“Love in the Moonlight”), a genius Go player (“Reply 1988”), and a psychopath (“Hello Monster”). He stars opposite Park So Dam (“Parasite”) in the ongoing K-drama series “Record of Youth“.

Earlier this year, Park Bo Gum shared the acting advice he received from Gong Yoo.

“‘I found that Gong Yoo is very good at immersing himself in the moment. I once asked him for advice on how to act angry. He told me that if you just confidently let out a yell, then that feeling comes to you,’ Bo-gum revealed.