Fans of Todd Graff's endearing CAMP, a fictional account of summer shenanigans at an upstate New York performing-arts camp, will also enjoy Alexandra Shiva's documentary about Stagedoor Manor, the real-life Catskills summer workshop that inspired Graff's "Camp Ovation." Located in Hudson Valley's idyllic Loch Sheldrake, Stagedoor Manor is one the of country' more