By LAWRENCE FRENCH In early March, Joseph Breen, RKO’s head of production under George Schaefer left for Mexico on a vacation, leaving one of Welles key supporters absent during the panic that gripped the studio after RKO held the first previews for THE MAGNIFICENT AMBERSONS. RKO executive Charles Koerner assumed Breen’s duties, supposedly on a … Continue reading The Memos Part II- ‘The Magnificent Ambersons’ memos to and from Orson Wellesm Orson Welles