Twelve Angry Men - Lee J. Cobb goes mental

I think this is my favourite movie of all time.  Seems to be shown twice a week these days on Sky. One of the greatest casts every assembled. Henry Fonda does the lead, but also great performances from E.G. Marshall, Cobb, Martin Balsam, Joseph Sweeney, Jack Warden and Jack Klugman (later known for the Odd Couple and Quincy).

Think this was made as a kind of a post McCarthy witch-hunt message, as many of the people involved had been at least semi-blacklisted for their leftie views.

Anyhoo, this is one of the classic final scenes, where Lee J. Cobb's character reveals why he really wants the defendent proven guilty and sent to the electric chair.