Lights … Cameras … Insect Repellent? How To Build Your Own Outdoor Movie Theater | GeekDad | Wired.com
http://www.wired.com/geekdad/2009/05/lights-cameras-insect-repellent-how-to-build-your-own-outdoor-movie-theater/

aka DIY Backyard Outdoor Theater System; w/the comments offering improvement suggestions

How to build your own huge (outdoor) screen theater system.