You may also need to play around with distance to determine the best resolution between where the projector is placed.
 The bigger the screen the better resolution you’ll need so consider using a high definition projector. Do a test run before showing the movie so you know how it will appear on the screen.
 Unless your backyard is pre-equipped with sophisticated audio system, consider using a stereo receiver and any speakers you have at home.
Use a stool, chair or blocks to prop projector so it is in line with your screen.
Test drive the projector you plan to use.
Wire audio to an outdoor audio system.
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