The Philosophers' Stone
according to
The New York Times—
Related material
from French cinema—
"a 'non-existent myth' of a battle between
goddesses of the sun and the moon
for a mysterious blue diamond
that has the power to make
mortals immortal and vice versa."
See also
* The title is a reference to Jim Dodge's 1989 novel Stone Junction: An Alchemical Potboiler.