On Occult Messages in Dragonslayer

So, I recently watched Dragonslayer (1981) on DVD. When I was very young, I watched the movie several times on VHS, perhaps I even saw it in the theater. I don't quite remember.
In any event, these days I am able to understand things I did not then. For instance, whoever wrote the script knew plenty about the Renaissance Magus, more than you'd get by, say, reading the Tempest a few times. I was impressed by the detail there. The writer or writers also knew at least basic Latin and cared enough to get it right: habemus lucem et calorem. sicarius draconis. confunde mortem. awesome.
I was also very pleased to see that the apprentice's tunic had a well embroidered octagram, pleased because it wasn't one of those horrendously difficult to draw stars, but a simpler design: two squares, one rotated 90 degrees with respect to the other. Simple. Now, 8 is an important number in modern occultism: Ouranos, 8th planet and 1st to come after the ancient seven; the color of magic, octarine, coming after the 7 visible colors of the rainbow; and the whole 8 on its side = infinity business.
Now, an octagram by itself is not enough to make one suspect the writers knew anything about modern occultism, but it's fun to think about it. So, later in the movie, I was pondering the elegance of serendipity, when it occurred to me that the design embroidered within the octagram looked a lot like the astrological symbol for Ouranos. If it were, in fact, that symbol, dead ringer that the writer or writers, working in the late 70's, were clued into something.
Movie ends, back to scene selection, got it. So very close. Whereas the symbol for Ouranos is an H with a line down the middle reaching below the others and capped by a small circle, the embroidered symbol was close, but not quite. If you drew the symbol for Ouranos, then erased the middle, vertical line, leaving the small lower circle, and then drew another small circle above, a little beyond where the erased line would have ended, you'd have the symbol in the movie.
Such a tease.