It is open to interpretation, however i feel that it has little importance. It is just a ploy by the author to generate side conversation to add to the story and detract from the focus of the story. It could also be interpreted as a comparison of the tension felt within the room and the warmth resonating from outside, or maybe a longing to go outside by some of the characters is shown by this heat such as the man with the tickets wishing to leave to get off to where he needs to be. Its up to you, there is no way to be wrong in an interpretation so just go with whatever you think it is, or use one of the interpretations i provided.
Heat is crucial in "Twelve Angry Men" as it contributes to the tension and conflict among the jurors, affecting their judgment and emotions. The intense heat amplifies the pressure cooker environment within the jury room, pushing the jurors to confront their biases and preconceptions. It symbolizes the intensifying stakes and the emotional heat of each deliberation.
Juror Eight is the protagonist in Twelve Angry Men.
Dramatic Publishing http://www.dramaticpublishing.com/p1602/Twelve-Angry-Men/product_info.html
Lumet, S., & Rose, R. (1957). Twelve angry men. Los Angeles: Orion-Nova Twelve Angry Men.
The law is accurate in the movie Twelve Angry Men as it relates to finding a Defendant "Guilty beyond reasonable doubt."
The Fonda's. Henry in Twelve Angry Men", Jane in "Klute" and Peter in "Easy Rider".
The Great Defender - 1995 Twelve Angry Men 1-8 was released on: USA: 1995
from twelve angry men justice and fairness will prevail if there is one just man who believes in them
Henry Fonda
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The most important strength portrayed by the jury in Twelve Angry Men was 'determination' regardless of any justifiable (or unjustifiable) logic each individual attached to the term.The group was determined to complete the deliberations as directed by the Judge in the case.
Studio One - 1948 Twelve Angry Men 7-1 was released on: USA: 20 September 1954