Put another way, in 2014 iOS app developers earned more than Hollywood did from box office in the US.
Although the totals for Domestic (US) Box Office are not the complete Hollywood revenues picture, Apple’s App Store billings is not the complete App revenue picture either. The Apps economy includes Android and ads and service businesses and custom development. Including all revenues, apps are still likely to be bigger than Hollywood.
Wether the app market is or isn't bigger than Hollywood is a bit of a guessing game. Frankly though, I find it amazing that it's even a legitimate question.