PricewaterhouseCoopers, the accounting operation inside the PwC consulting and accounting group, has handled vote counts and Oscar ballots for 83 years. Last night, at the Academy Awards ceremony, PricewaterhouseCoopers undercut its reputation when the wrong Best Picture ballot was given to presenters. The blow to the firm is incalculable. The Oscars have to be the event that gives PricewaterhouseCoopers its most visible presence with the public throughout the year. What apparently happened was that Best Picture presenters Warren Beatty and Faye Dunaway were given an envelope with an incorrect winner.