It introduces characters in a natural way where you can understand them and get a sense of who they are. This allows you to become attached to them to then…
Have actual stakes that affect the characters. One example is that kids aren’t safe in dangerous situations. They don’t have to be hurt or die but you have to feel like that will happen, there’s no plot or child armor.
Memorable. Be it lines, scenes, or just in general. I’ll remember it well after seeing it.
Not comprehensive but a good start.