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The two lead stars were asked about their partnership in the film since Kang Dong Won is 20 years older than Shin Eun Soo, who is only 12 years old. Kang Dong Won said, "I wasn't aware of our age difference. We got along like friends." Shin Eun Soo, on the other hand, had to let it out by saying, "Honestly for me, it was very uncomfortable. After some time, it got better, but even now, I'm still slightly uncomfortable." 

'Vanishing Time: A Boy Who Returned' premieres in theaters this November. The film tells the story of a boy who goes missing, then ends up reappearing after turning into an adult. The only one who believes him is a girl named Su Rin, and the movie outlines their unique story. 

Check out the trailer below.