by Xenorama » Thu Jul 30, 2009 4:27 pm
it's the same reason they changed titles all the time for any kind of movie- GODZILA VS THE THING, GODZILLA VS THE SEA MONSTER, GODZILLA'S REVENGE (which should have been called GODZILLA ON MONSTER ISLAND) or put Godzilla and Megalon on top of the World Trade Center towers back in 1976 (blame that on the first needless Kong remake, too).
just a more exploitable title. all the Gamera movies got retitled for US tv as well (except Jiger).
David