This is the 510th most frequent Korean word.
좀
"A bit," "a little," or a softening word for politeness.
In this instance, '좀' is used to moderate a request, making it more polite and less direct.
좀 도와주세요.
Please help me a little.
Here, '좀' is used to express a modest degree, conveying that the amount of work was considerable but not overwhelming.
어제 일이 좀 많았어요.
There was quite a lot of work yesterday.
In this sentence, '좀' indicates a slight feeling, suggesting that the movie's tediousness is not extreme but noticeable.