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Secretly, Greatly 은밀하게 위대하게

About

Secretly, Greatly (Korean: 은밀하게 위대하게; RR: Eunmilhage widaehage) is a 2013 South Korean action comedy-drama film starring Kim Soo-hyun, Park Ki-woong, and Lee Hyun-woo, who play North Korean spies who infiltrate South Korea as a village idiot, a rock musician, and a high school student, respectively. They assimilate to small-town life while awaiting their orders, until one day, due to a sudden power shift in the North, their mission turns out to be an order to commit suicide. The film is based on the 2010 spy webtoon series Covertness by Hun. Upon its release on 5 June 2013, the film broke several box office records in South Korea: the highest single-day opening for a domestic film, most tickets sold in one day for a domestic film, the biggest opening weekend, the highest-grossing webtoon-based film, and the fastest movie to reach the million, two million, three million, and four million marks in audience number.

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Secretly, Greatly (은밀하게 위대하게) — verified Korean film. Released 2013-06-05. Directed by Jang Cheol-soo. 3 verified cast.

Details

• Runtime (min): 124
• Genre: spy film, drama film
• Original language: Korean
• Title: Secretly, Greatly
• Korean Title: 은밀하게 위대하게
• Year: 2013
• Country: South Korean
• Release Date: 5 June 2013
• Based On: 2010 spy webtoon series Covertness
• Source: 웹툰
• Original Author: Hun(최종훈)
• Serialization Platform: 다음 만화속세상
• Serialization Period: 2010년 7월 5일부터 2011년 4월 28일

Source reconciliation

• Wikipedia lists the Korean name as 은밀하게 위대하게 (영화); KoreaAPI uses 은밀하게 위대하게 (chosen by source authority).

Independent sources disagreed here — shown, not hidden.

Cast (3)

• Kim Soo-hyun
• Park Gi-woong
• Lee Hyun-woo

Director

• Jang Cheol-soo

Q&A — what agents ask

Cross-checked by 3 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗
• TMDB — film/TV community database

Verification history

Verified & tracked since 2026-08-19 · 4 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("film:secretlygreatly").

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