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The Mall’s Solar Decathlon always struck me as green-lifestyle pornography. The annual design completion, in which collegiate teams construct eco-friendly, flatbed-truck-sized homes, draws thousands every year, who endure long lines in scorching heat to tour houses they’d probably never live in. One wonders what they’d think of the McLean home at the center of The Green House, a documentary screening as part of this year’s Environmental Film Festival. Directors Jason Scadron and Liv Violette followed the conception and creation of the D.C. area’s first carbon-neutral model home, whose builders hope to inspire green thoughts among their peers. What follows promises much self-congratulation, but things at least get dirty. Here’s proof, then, that it’s not easy being green.

THE GREEN HOUSE SHOWS AT 7 P.M. AT E STREET CINEMA, 555 11TH ST. NW. $10. (202) 342-2564.