Os Dois Corações do Rei (2012)

Triangle is about brothers finding each other after years and the most powerful one is a gangster. K2H is about a prince learning to steer through danger and politics. Two very different dramas. In Triangle, the lead turns from a pitiful, poor, and powerless gangster to the most calculating, powerful one. He steers his people through danger and comes out on top. By the middle, there is no one who doesn't feel apprehension when they hear his name. In King2Hearts, the degenerate playboy prince transforms into a smart, respectable, highly admired leader. Also, in both, the leads were called 'trash' in the beginning.

Both KoreN drM! The male is wealthy, yet young handsome and good looking. He fell in love with an ordinary sweet woman. Lots of obstacle along the relationship

Jo Jung Suk is in both movie. An underaged actor. Very good at showing own emotional, eventually gave up self need and scarify for others.

both have a very interesting plot and SoundTrack both are legendary after watching the drama you will know, there is so much action on all two dramas.

AWESOME 100%

It might seem a weird recommandation at first, but both dramas are starring Lee Seung Gi so it's a good point. And in both story, he meets a woman who does martial arts and acts like a guy so I think they might be considered pretty much alike!

Both about a prince falling for a commoner,
K2H is with more action and strong female lead (not just mentally).
PH is with more comedy and more romance screne, its easy going

In both dramas the main protagonist starts as a jerk and becomes a hero. Both are about war.

If you liked "As one" then you might like "King2Hearts." Although "As One" is about ping pong and "King2Hearts" is about the royal family and politics, i found a very big similarity. They are both about South Korean's and North Korean's coming together as one team. And finding out they aren't so different from each other after all.

Both have kick ass female leads and laugh out loud moments. Both male leads are quite smart and though they lack the physical punch, they usually come out on top of most confrontations.

They both play on the idea of the male lead falling unexpectedly for someone they are engaged with/married and wanting to give up anything for that love. Both got a bit boring in the middle when the melodrama kicked in as they both had an overarching Evil Plot to overcome.

North South Korea movie. The politic. The innocent kind people. The ugly hate people. The divide. The sharing of family love, the inner self, wanting of peace but country not in peace

King2Hearts was 100% better. If you want the training, the growth of a playboy into someone formidable, who never looses the romance and fun in life, K2H is for you. The female in K2H is also 100% better than the character in 7th Grade. To me, 7th grade tried to pull a K2H and failed badly.

Both films about north and South Korean. The relationship build. The differences. The tension. The political differences

Both involve North and South Korea in conflict. Although there's no monarchy setting, it's very similar that involves melodramatic moments and a deep set conspiracy-kind of theme.

Both dramas about unification of North & South Korea and involve romance between a woman from north & man from south. Also has lots of action scenes

same plot .....
a corporate organization wants to take down a country.