Gangnam (2023)

Both are movies about people trapped inside a building during a zombie outbreak.
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Both are about people trapped inside a building during a zombie outbreak with the owners of the building more concerned about their money and status than the people's lives and the lead couple working together to survive.

Both are about zombie apocalypse.
Be sure to watch all parts of Kingdom!!!
This GZ is set on modern times where as Kingdom is set in Joseon times.