In low-key, low-budget, character-study drama "When You Finish Saving The World" uptight Julianne Moore (excellent) runs an Indiana shelter for domestic abuse victims who she seems to care more about (especially teen Billy Bryk) than her own wallflower hubbie Jay O Sanders & teen son Finn Wolfhard. The latter's a wannabe online musician struggling with issues of maturity (and a crush on Alisha Boe). Focussing (indirectly and at a distance) on the mother / son relationship this is absolutely not one for adrenaline junkies, but as Jesse Eisenberg's debut as writer / director it's a terrifically performed, quirky, interesting and certainly passable first offering.