Looking at Scripts!

When script writing, I wanted to look at other scripts that I would similarly follow for my film. I decided to look at the script My Girl (1991). 

CLOSE UP OF VADA

                                 VADA
                        (to camera)
                I was born jaundiced. Once I sat on a toilet 
                seat at a Truck stop and caught hemorrhoids. 
                And i've learned to live with this chicken 
                Bone that's been lodged in my throat for the 
                past three years, so I knew Dad would be 
                devastated when he learned of my latest 
                affliction.
                        (to Harry)
                Dad, I don't wanna upset you, but my left 
                breast is developing at a significantly faster 
                rate than my right. It can only mean one 
                thing.  Cancer.  I'm dying.

                                 HARRY
                        (ignoring Vada)
                O.K. Sweetie, hand me the mayonnaise out of 
                the fridge.
 
        FRONT OF SULTENFUSS' HOUSE

        Vada closes front door and goes down the steps to a group 
        of boys

I really like how the beginning of the movie introduced the main character. The protagonist (Vada) speaks in narration to the audience. It creates a introduction to her character before any main plot begins. We learn that Vada believes she has all these illnesses and issues. We don't think much of this till Vada starts speaking to her Dad about her left breast developing faster than the other, till she abruptly concludes its cancer. It seems normal to Harry (her father) because he seems to ignore it and what she is saying. It creates an interesting plot for the rest of the movie.

I want to implement this into my film. I would like an opening of my film to be narration over an action my character is doing. I think it establishes a good understanding of what the film will be about in a good, short monologue and I think audiences enjoy being able to feel like the protagonist is communicating with them, like almost breaking the fourth wall.