HOLLYWOOD — Chris Brock has been named VP of business affairs for 20th Century Fox. He’d held the title of director for the past two years.Executive VPs of business affairs Stephen Plum and Mark Resnick announced the move Monday. Brock was also senior business and legal affairs executive at Film Four in London from 2000-02. Prior to that, he was a lawyer in Fox’s legal department from 1997 to 2000, where he held the titles of counsel and, later, senior counsel. Brock’s a grad of the U. of Michigan Law School.