Ok, bare with me as I'm alittle confused and probably making this more complicated than it is. When measuring the projectors projected image size for making my own screen, do I go with only what of the actual movie is projected, or do I measure and include the white space I have above and below the image, that is made by the projector. Also, how do you compensate for some movies being in a different widescreen format? Like 2.35:1 vs 1.85:1? Either picture is not wider right, just taller? Basically what I need to know is what size should I make my screen for so I cover all different types of widescreen aspects. Right now it's about 96" and I'm using just a white wall.