Identify the developmental stage of the main character of a movie - analyze aspects of development. Confused.?

So this is what I need to do. The paper should identify the developmental stage of the main character from the list of movies. Analyze the physical, cognitive, and psychosocial aspects of his/her life development.

Now I'm going to do mine on the movie Enough. I thought of looking at the wife, that was abused and protected herself and her kid. However, she is developed mentally already, basically.

I could do the younger girl, had an abusive father, has no father anymore, divorced mother, no father figure...

However, I don't know the developmental stages yet. We are still on birth and labor, in our developmental psychology class.

What would be the developmental stage of the wife? What would be the physical, cognitive, and psychosocial aspects of her development?