Tweve Angry Men

It's interesting watching the characters emerging from rehearsals of a play I am in called 'Twelve Angry Men' which I think was written by Reginald Rose (it's difficult to pinpoint the original playwright because so many different versions have been produced and made into film). It's about a lone dissenting juror in a murder trial who gradually brings all the members to his way of thinking but it's also a play within a play about twelve real life men shut up in a room twice a week with egos and agendas.