A:Answer Hello Swinaz. Ideally, the Home Cinema 3200 should be positioned squarely in front of the center of the screen, not at an angle. Should you need to adjust the image shape, keystone adjustments can be made on the projector. For a 150 inch screen, you can place the projector between 175 to 283 inches away from the display. Regards, Kevin - The Epson Team.