TRUE GRIT: Once a year, Coney Island seems like a shore-side small town, and it’s when the Sand-Sculpting Contest takes over the beach. Enter to win or just observe the extravagant sand castles on display. Saturday, 12-5PM.
LUCKY, PUNK: Harlem’s Maysles Cinema presents a fantastic documentary twofer on the history of the English and American punk rock scenes. Even if you couldn’t care less about Henry Rollins or Bad Religion, ‘The Decline of Western Civilization’ and ‘American Hardcore’ are compelling peeks into how bands became famous pre-Web. Saturday, 7PM
NYPD: Under the Joan as Police Woman guise, local singer-songwriter Joan Wasser combines spare, melodic, complicated tunes with one of the most arresting stage presences to come along in a while. She’s joined by the floaty, Air-esque Holly Miranda at 92YTribeca. Saturday, 8PM. >>
OUTDOORS: Sara D. Roosevelt Park turns into a veritable modern-art carnival for the New Museum Block Party (plus, admission to the museum's exhibits is free all day). Sunday, 12-7PM. >>