Ok, since we're in the spirit of adding movie titles, here are some of my suggestions :P
The Pirates: The Last Royal Treasure
https://mydramalist.com/32760-the-pirates-2
South Korea, 2022 - A tale of adventure and loads of fun revolving around a motley crew of misfits competing with Joseon imperialists for the lost treasure of Goryeo.
The Swordsman
https://mydramalist.com/23431-swordsman
South Korea, 2020 - Jang Hyuk plays the titular role in the South Korean version of Taken where the best swordsman of Joseon embarks on an adrenaline-fueled rescue mission to retrieve his stepdaughter who had been taken captive by Qing Dynasty slave traders.
Rampant
https://mydramalist.com/24650-outbreak
South Korea, 2018 - The condensed film version of the Kingdom-series that centre on a zombie outbreak during the Joseon dynasty.
The Battleship Island
https://mydramalist.com/16357-battleship-island
South Korea, 2017 - The film recounts the tale of Japanese prisoners of war in Hashima Island attempting their escape from the brutality of their captors during the Japanese colonial era.
The Assassin
https://mydramalist.com/9530-the-assassin
Taiwan, 2015 - Shu Qi portrays the eponymous assassin in a character-driven story about a clandestine organisation's righteous aim to rid the land of corrupt officials in 9th century Imperial China.
The Admiral: Roaring Currents
https://mydramalist.com/7875-the-admiral-roaring-currents
South Korea, 2014 - An epic war film that recounts the Battle of Myeongnyang, where the depleted Joseon royal navy faces seemingly insurmountable odds against the overwhelming force of the mighty Japanese Imperial armada during the Imjin War.
The Four (trilogy of films)
https://mydramalist.com/5065-the-four-2012
Hong Kong, 2012 - Set during the reign of Emperor Huizong in the late Northern Song Dynasty, the narrative revolves around the investigations of the great four constables of the Department of Six as they unravel mysterious occurrences in the ancient capital.
The Pirates
https://mydramalist.com/7750-the-pirates
South Korea, 2014 - An unlikely alliance between mountain bandits and sea pirates in a race to retrieve the State Seal that had been swallowed by a giant whale forms the core narrative of this comedic tale of adventure in the high seas that is headlined by Kim Nam Gil and Son Ye Jin.
The Sword With No Name
https://mydramalist.com/724-the-sword-with-no-name
South Korea, 2009 - A tale of love and romance between a swashbuckling swordsman and a noblewoman who is destined to become Queen of Joseon. This romanticized account of Empress Myeongseong is headlined by Cho Seung Woo and Park Soo Ae.
Curse of the Golden Flower
https://mydramalist.com/1432-curse-of-the-golden-flower
China, 2006 - Chow Yuen Fat, Gong Li and Jay Chou lead the star-studded cast in Zhang Yi Mou's historical extravaganza where the fictional story about a deeply dysfunctional royal family during the Later Shu of the Five Dynasties and Ten Kingdoms period is loosely based on Shakespeare's Hamlet.
The Banquet
https://mydramalist.com/1735-the-banquet
China, 2006 - Another loose adaptation of Hamlet, this time Zhang Zi Yi and Daniel Wu portray a pair of star-crossed lovers in a gorgeous production featuring themes of revenge and fate during the Five Dynasties and Ten Kingdoms period in 10th century China.
The King and the Clown
https://mydramalist.com/368-the-king-and-the-clown
South Korea, 2005 - A tragic tale of friendship with BL undertones during 16th century Joseon between a pair of actors in a travelling troupe amidst the convoluted politics of the royal family. Lee Joon Gi delivers a memorable performance in what would become his breakout role.
Ok, I think I'll stop here, else I'd go overboard lol