A pair of pint-sized rock stars wrestle with the perils of stardom, icky girls, and too much soda pop in this mockumentary comedy. Nine-year-old Nat Wolff is the singer, guitarist and songwriter for a rock band known as the Silver Bullets, which features his six-year-old brother, Alex Wolff, on the drums. With the help of their equally youthful bandmates Joshua Kaye, Thomas Batuello, and David Levi, Nat and Alex have built the Silver Bullets into one of the most popular groups on Earth, thanks to the business acumen of their manager, Cooper Pillot, and despite the uncalled-for assistance of Nat and Alex's accordion-wielding father (Michael Wolff). But life at the top isn't always easy, and creative differences begin to drive a wedge into the group when Nat insists they record a love ballad dedicated to his nine-year-old girlfriend, Rosalina (Allie Dimeco), while his bandmates would prefer to cut Thomas' "Boys Rule, Girls Drool." As the squabbling continues and Alex becomes addicted to lemon-lime soda, the Silver Bullets break up, but will the pleas of their many fans encourage them to reunite? The Naked Brothers Band was written and directed by Polly Draper, who happens to be Nat and Alex's real-life mom; the Silver Bullets write and perform their own material, and Draper was inspired by her kids' pre-teen musical exploits. Julianne Moore, Uma Thurman, and Cyndi Lauper make cameo appearances as some of the group's better-known fans.