Three weeks at Wisconsin’s Swift Nature Camp is a timeless American idyll: canoeing, exploring, singing around the campfire, comparing notes on the AD/HD meds you take during the school year. OK, maybe a few things have changed since the days of “Hello Muddah, Hello Fadduh,” Allan Sherman’s 1963 hit about the sleep-away experience. Directors Bradley Beesley and Sarah Price’s Summercamp! includes some modern touches, a few of their own choosing (such as the Flaming Lips–heavy score) and others forced on them by today’s overstimulated, undernurtured kid culture. Head counselors Jeff and Jennie clearly intend a traditional experience, running a camp where each cabin is named for a bird and laptops and iPods are banned. Yet the real world intrudes, notably in the form of melancholy girls and hostile boys. The result is a sweet little documentary that can’t help but be a little alarming. The film shows at 5:20, 7:30, & 9:45 p.m. at the AFI Silver Theatre and Cultural Center, 8633 Colesville Road, Silver Spring. $9.25. (301) 495-6700.