The beginning of nothing

Where in the play do you think Lear's
expressions would fit this picture?

There seems to be a recurring theme of "nothing," that began in the first scene when King Lear said:  "Tell me, my daughters, which of you shall we say doth love us most, that we our largest bounty may extent.  Goneril, our eldest-born, speak first," (Act 1, Sc 1, 52).  

Soon, after Goneril and Regan have had no trouble "heaving their hearts into their mouths," it is Cordelia's turn to wax eloquent.  Lear bids her speak:

Lear:  What can you say to draw a third more opulent than your sisters?  Speak.

Cordelia:  Nothing, my lord.

Lear:  Nothing?

Cordelia:  Nothing.

Lear:  Nothing will come of nothing, speak again.

Cordelia:  Unhappy that I am, I cannot heave my heart into my mouth.  I love your Majesty according to my bond, no more nor less.

This is a clip from the movie, "Guess Who's Coming to Dinner."  This depiction of the scene is about 4 minutes long, and shows a relationship with some similarities to King Lear and Cordelia.  

I have spent time thinking about this scene since first I saw it; the son, Dr. John Prentice, played by Sidney Poitier, is in his way telling his dad that he can say nothing of how much he loves his dad beyond their bond as father as son. It is a poignant scene very nearly follows the theme of where nothing has a place in the closest of relationships.