↑SBS produced a documentary about Lee Byung-hun aired in July 2013 which explained how he was able to become a world star and how this opened the door for other domestic celebrities to participate in overseas movie production.
↑The film has been temporarily postponed due to the COVID-19 outbreak in South Korea and the number of infections is likely to increase. The film was originally scheduled to be released in January 2022, thus temporarily postponing the screening.
↑Jung Yu-jin (December 15, 2021). "'비상선언', 1월 개봉 포기 "상황 어려움 고려…잠정 연기" [공식]" ['Declaration of Emergency', abandoned in January release "Considering difficulties in the situation…provisional postponement" [Official]] (به کرهای). News1. Retrieved December 15, 2021 – via Naver.
↑Jeon Hyung-hwa (November 18, 2021). "송강호x이병헌x전도연 '비상선언' 2022년 1월 개봉 확정" [Song Kang-ho x Lee Byung-hun x Jeon Do-yeon 'Emergency Declaration' confirmed for release in January 2022] (به کرهای). Star News. Retrieved November 18, 2021 – via Naver.
↑Lee Seung-mi (July 20, 2021). "[공식]이병헌 측 "美넷플릭스 오리지널 청춘 로맨스 영화 제작…출연은 논의中" [[Official] Lee Byung-hun's side "A Netflix original youth romance movie is being produced… Appearance is under discussion]. Sports Chosun (به کرهای). Naver. Retrieved July 20, 2021.