Recommendations

Both Korean movie are about an old man and young man. One is more intense thriller, the other one more on sweet side, family genre

Both stories involved a young man and an old man. Both has their own issue and problem. They learned from each other, hearts soften out and relationship growed.

Both Korean movie/ drama shown the relationship between the young man and the old man. Both old man has Alzheimer at the end. Heart warming stories

Both are documentaries that focuses on significant persons in a certain country. Difference is that Kingmaker is on politics while A Holy Betrayal is more on the religious type.

In The Chinese movie the young man help the old man finished his unfinished business. The Korean one the young man help the old man revenge

The same marriage of convenience trope.
Different attack on the same concept, and character wise really different.

The same marriage of convenience trope.
This one around I think the characters do not match, since they have different personalities but both have that comedic vibe into it.

The same marriage of convenience trope.
Focuses on the main lead couple.
Both male leads have the eccentric/quite different nerd like character.

It has a similar story that the mainlead back to the past after death to save herself. She suddenly wakeup back to the past

Two male leads with strong bond. Fighting and action for life and death with ancient background. Betrayal and yet protecting each other. Many leads are getting killed. Relating to Military or police background.

Both films talk about the process korean citizens weth thought to getting their right for having democracy, one talk about gwanju and the other talk about struggle june.

Both the FL in midnight and ML in Witness act their hearts out. Both involve the respective leads faced with an opponent who seems overpowering. But they give it one hell of a fight. We need more Korean thrillers like this. Nowadays Korean thrillers are going in Hollywood way attach a sex scene and go for some formulaic half assed storyline. But these two movies are an exception.

Both involve FLs being chased and them giving one hell of a fight. What happens to the FL? What will happen in the next scene? That runs in your mind throughout the screen time. Both are quality thrillers. Not all Korean thrillers are good quality. These two movies are exception.

Both dramas have interesting plots.
There is an intense feeling to it, it's not a light drama.
The FL is hiding things from the ML and the ML is suspicious of the FL.
The relationship have ups and downs.
There is a second couple.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.