As the middle of August nears, it’s important that one gets in all the outdoor movies, shows, and hangs that they possibly can! This Tuesday, August 14, The Decemberists play in Prospect Park as part of BRIC’s Celebrate Brooklyn! Festival. It’s a benefit concert on a beautiful night, and tickets, $45, are still on sale. Make sure to come early so that you can watch former Walkmen lead singer Hamilton Leithauser open. Doors are at 6pm.