Both movies about long distance running, ultra marathon, personal challenge for pride, for other purpose. The emotional support, the goal and the mission, make this though sport amazing

Both Korean drama has really intense action spy, war, intelligent, action, drama , romance genre.
Both involve the fights between North and South.

Both movies are about the war between North and South Korea.
Wars are sad and unnecessary. Many young men dead due to the political differences.
Intense action war movies

Both involve war between North and South Korea,
People on both side suffer.
Ruthless politician cause the unnecessary war.
Intense fights scene

Both are about North and South in war.
Lots of military action, political fights.
Wars are sad, nasty, sacrify,

Both has the similar North and South Korea relationship, romance and political/military involve.
Both have intense action as well as sweet loving moment

Both film about North and South main leads developed friendship, understanding, bond and trust. Despite the political differences and pressure, could they survive in mission and relationship/friendship?

Both are about Northern Korea spy in South Korea.
Both film shows the feeling and emotional struggle of North Korean spy reside in the South
They were royal to the country trying to suppress self conscience and feeling
Great movie

Can people from North and South Korea became friends or lovers?
Despite the political and cultural differences, they are all human being.
Mutual respect, mutual assist, they bond snd create memory, disregard the unknown ending

Both are very tense Korean film about North and South Korea.
People from both side could become enemy or friends or lovers
Could politic break them apart?
Very heartwarming movies, must watch
There were some cute, fun parts, as well as serious parts

Both are heartwarming Korean film about a couple love relationship affected by the border.
Will North and South Korea tense relationship break them apart?
It could be a life long struggle.

Both of this Korean drama has North and South Korean relationship.
The main leads are from high rank political family
Both main couple are in love but facing many challenges and obstacles.
King2hearts is a bit older drama, no spy, but fun to watch nevertheless