Intention (Korean: 그날, 바다; RR: Geunal, bada) is a 2018 documentary film directed by Ji-young Kim, who also directed the follow-up investigation, Ghost Ship. The film focuses on the South Korean government's involvement in and cover up of the Sewol ferry disaster in 2014. It features scientific analyses and testimonies from survivors to reveal the cause of the sinking, which resulted in the deaths of 304 of the 476 people on board, most of whom were high school students. Kim proves that much of the government-released data made available to the public was faked. Survivors indicated that there was governmental pressure to change their testimonies about the sinking to fit a different, inaccurate narrative for the disaster. Kim proves that there was collusion between government entities to not only conceal that the ship's sinking was not accidental, but also cover up the fact that the Korean Coast Guard failed to rescue passengers.Intention reveals the corruption within the government of Park Geun-Hye, the South Korean president who was impeached in 2017, and notably focuses attention on the National Intelligence Service (South Korea) (NIS).

The film is narrated by actor Jung Woo-sung.The film was released in South Korea on 12 April 2018 and quickly broke the country's box-office record for a political-current affairs documentary.