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Director Lee wasn't shy to show his fanboy love for 2PM's Junho. He said,�"I liked Junho the best." He continued,�"I was originally Junho's fan. I said that I liked Junho the best when 2PM first came out. It's because he has the face of an actor.�He's usually stylish, and he has a cute face. He's the actor who synchronizes best with my movie character."�

The director also discussed how the three main leads suited their characters overall as he said,��"The three characters have nerdy personalities. These three [actors] appear to be inappropriate [for the roles], but after thinking about it and meeting them, I found that they were satisfactory. It wasn't difficult [to film with them]."�

Director Lee appeared particularly happy over casting Kim Woo Bin as he said,�"Previously, Woo Bin acted in many serious roles, but this role needs a light-heartedness and playfulness; I thought it would be nice if I used him." He concluded,�"I trapped him well. I used him well,"�causing laughter at the conference.�

'Twenty' is a film that follows the story of three friends experiencing the embarrassing age of 20. It is set to premiere in March.�