He said, "The bathhouse scene is extremely important," revealing this was because it did a good job portraying the sensitive emotions of the brothers. He continued, "It explains the reason Doo Shik (Jo Jung Suk) has no choice but to hate Doo Young (D.O)."
He then relayed an amusing behind story regarding the part where he scrubs D.O's back to get rid of the dead skin. He said, "Not a lot of dead skin came out [from D.O]," making everyone laugh.
The movie premieres on November 24!