gnosis

I know this might be a simple question that might be better suited elsewhere but does anyone know how to process a video that is larger than 1080p in premiere?

I am trying to take a video piece that is 3640 that is to be spanned across two displays that are both 1080p projectors. In my blend area between displays do I need to create a feathered edge to compensate for the blending or does Watchout do this automatically. I don't see this on the stage in the production machine but I was curious if there is a difference between what I see on the production machine and what the display machine will give me? Any help would be appreciated.