WIPPING with the non-box, early thoughts so I might be floating a bit but because the green screen is context-less and can take us anywhere I was thinking of this external mechanism which carries the many possible sites. In terms of the moving image of the film I thought of the carousel slide projector for example.
Sketching! I was thinking that the non-box can operate not only as a line in pushing and pulling but also as a cross. Maybe the second page can explain this. Also the two middle vertical planes which enclose the green screen are like masking in photoshop so they could be porous. I am wondering which is the background, the site or the workshop, which would also identify the foreground. I am thinking of this in terms of theater, the backstage and the audience.