It's not like "Divergent" fans had any real reason to worry about their franchise getting a sequel, seeing as Veronica Roth's books are a trilogy and Lionsgate had a follow-up planned all along. But just in case anyone was uncertain, Lionsgate subsidiary Summit Entertainment has officially given "Insurgent" the green light. Really, though, we had nothing to fret over. The Shailene Woodley-fronted dystopian flick opened to an impressive $4.9 million following Thursday night's screenings. While...