I have just seen the most wonderful description for a modern film PR in a comment feature in Variety.
WANTED: Top flack for the film industry. Ideal candidate will maintain inexhaustible ability to spin, wheedle and cajole. Must have strong parenting skills; magician’s training preferred. We offer plenty of responsibility, little power or support and great pay. Burnout guaranteed.
Yup it’s a very glamorous job but it has the “the burnout factor and the seven year itch”. “Once upon a time, the studio publicists were the ones with all the information, who had the connections to executives and talent, but recently they’ve been demoted to running interference and not even being given the proper tools to do that.”