From prescription, in the case of hypaethral edifices, open to the sky, in honor of Jupiter Lightning, the Heaven, the Sun, or the Moon: for these are gods whose semblances and manifestations we behold before our very eyes in the sky when it is cloudless and bright.
That's one of the things about theater vs. film - with theater, actors have a little more control, and one of the disappointing things about films is that once you're done shooting, anything can happen, you know?