'Insurgent' And Why Young Adult Novels Make Box Office Hits

The second installment of Veronica Roth's dystopian trilogy, The Divergent Series: Insurgent, grabbed $52.3 million in its opening weekend at the U.S. box office, just shy of Divergent's $54.6 million debut last year. Clocking $47 million worldwide, Insurgent brings the teen action franchise's total earnings to a plump $388 million so far, with two movies still to come.

Roth, who earned an estimated $17 million last year selling some 7 million books, is but one of many ink spillers whose literary successes have translated into box office hits. Nearly a quarter of the 200 top-grossing films worldwide tallied by Box Office Mojo have been directly adapted from books