What's going wrong at Paramount? Parent company Viacom has lost patience and changed CEOs after a string of flops led to a $455m loss last year. Brad Grey's been replaced by former 20th Century Fox chief executive Jim Gianopulos. Ben Hur and Zoolander 2 proved unpopular with audiences, and led to unfavourable comparisons with Disney's goldmine franchises like Rogue One and Captain America. James Brydges heard from Richard Broughton, research director at media analysis firm Ampere.