I’m pretty sure the movie was released around 2000-2013, one scene that sticked to me from back then was when one of the character (I think it was the main character) fought with a gigantic fish looking creature in a what seems like a harbor. The harbor made a U shape with top of the U facing the water. It was a movie that I saw in Viet Nam and the language that the actors are speaking are between Chinese, Japanese, Vietnamese, and Korean though Chinese, Japanese, or Vietnamese are more likely to be the one.

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