The initial premise is a good one - how a tragedy can make someone lose his/her faith and the principles on which he/she has based living. And then (about 10 minutes into the movie) it goes off the tracks and devolves into a bad after school special - a really, really bad one.
Lamb (a very bad character name) is supposed to have been protected from the evils of pop culture but when she travels through Vegas she seems to know quite a few pop culture references. The bad girl activities which she undertakes are lame and tame. The "jokes" are even worse
"I'll have the Peach Shnap" as she misreads the bottle behind the bar. Ha Ha.
The backstory for 2 people who befriend her are glossed over - thereby wasting the talents of Octavia Spencer (and maybe Russell Brand if I am being generous in the definition of "talent"). Oh yeah, Lamb's parents (the extremely talented Holly Hunter and Nick Offerman) barely register any screen time or decent dialog and are additional examples of wasted opportunities.
Sure, Lamb grows some through her experiences but it all comes too easily and too readily to her. And the audience can see the resolution way before it happens.
Such a disappointment from a talented writer and director, and a gifted cast so badly misused.
