This is the 14356th most frequent Korean word.
무관하다
"무관하다" means "to be irrelevant" or "to have no relation."
In this sentence, '무관하다' is used to express that the incident does not have any connections or relations to the speaker.
이 사건은 나와 무관하다.
This incident is unrelated to me.
Here, '무관하다' demonstrates the lack of relation or dependency between his opinion and the result.
그의 의견과 결과는 서로 무관하다.
His opinion and the result are unrelated to each other.
In this usage, '무관하다' is applied to show that the movie does not relate to or adhere to historical truths.