sentences:  It transpired that the Space Theater was still under construction, with equipment months from installation, and there was no way of viewing finished or full format test footage before the theater opened.Beyond that, it was infeasible to film in directly the Imax format which would be used for projection.The crew were therefore obliged to film in smaller format (65 mm eight-perf) for later optical blowup and projection to a screen image magnification 600 times the size of the camera negative.