This is the 5308th most frequent Korean word.
데다가
"데다가" means "in addition to" or "on top of that."
In this sentence, '데다가' is used to add both qualities of the subject together, emphasizing the accumulation of positive traits.
그는 친절한 데다가 유머 감각도 뛰어나서 모두에게 사랑받는다.
He is kind and has an excellent sense of humor, so everyone loves him.
Here, '데다가' indicates the addition of responsibilities, showing compounding workload.
숙제가 많은 데다가 시험 준비도 해야 해서 시간이 부족해.
There is a lot of homework, and in addition, I have to prepare for exams, so I'm short on time.
In this case, '데다가' connects two positive attributes of the movie, highlighting its comprehensive appeal.