Rich Ross | featured news

Mr. Horn reluctantly left Warner Brothers last year, indelicately squeezed out after he successfully guided the "Harry Potter" franchise. He replaces Rich Ross, who was fired in March.

The move ends a two-and-a-half-year tenure that was more notable for continued misses than hits. His exit comes after Disney was forced to take a $200 million write-down tied to the science-fiction megaflop “John Carter.” Other misses include “Mars Needs Moms” and “Prom.” Mr. Ross scored one smash: “Pirates of the Caribbean: On Stranger Tides.”