I suppose two documentaries on the same subject coming out within a year of each other isn't that unusual. Anyone remember those two Whitney Houston docs from a couple years ago? Or Netflix and Hulu competing for best dibs on the Fyre Festival debacle? Well, by some sort of serendipity, here are two documentaries commemorating the life, exploration, and research of volcanologists Katia and Maurice Krafft. Both born in the Alsatian region of France, Katia and Maurice first met each other at the University of Strasbourg in the late-'60s. The former a geochemist and physicist, the latter a geologist, they fell in love all but instantly, bonded by their mutual, lonely fascination with volcanoes. At a period of pivotal discovery in the field of modern geology - when confirmation of the theory of plate tectonics was yielding revelatory understanding of the violent, often cataclysmic forces perpetually shaping our planet - the duo became controversial but pioneering celebrities of the...