Forbidden Dream (Korean: 천문: 하늘에 묻는다; RR: Cheonmun: haneul-e mudneunda; lit.

Doors to Heaven) is a 2019 South Korean historical drama film directed by Hur Jin-ho and written by Jung Bum-shik and Lee Ji-min.

Based on a true story, it portrays Sejong the Great (Han Suk-kyu), king of the Joseon dynasty of Korea, and his relationship with his greatest scientist, Jang Yeong-sil (Choi Min-sik).

[5] King Sejong (Han Suk-kyu), the greatest ruler in Chosun history seeks to enhance national prosperity and military power through astronomy with the help of his greatest scientist, Jang Yeong-sil (Choi Min-sik).

For twenty years they forged a relationship but due to an incident, Jang Yeong-sil was removed from his post and disappeared completely.