I'm rather surprised I never learned of this until now, especially considering how this has unraveled over the past few years (here around Chicago no less). There's a long lost Godzilla film entitled Legendary Beast Wolfman vs. Godzilla, made by employees of Toho between Terror of Mechagodzilla (1974) and Godzilla 1985. This is an independent fan films but by no measure amateur. Man of the props and techniques are by the same people at Toho. Much more can be read about it here: http://www.scifijapan.com/articles/2013/06/03/in-search-of-monsters-wolfman-vs-godzilla/ There's a Kickstarter for a documentary, Kaiju Gaiden, which will include segments on Legendary Beast Wolfman along with sequels to Attack of the Mushroom People and Atragon. There's less than 24 left on it however. I'm thinking about kicking in for the Blu-ray. It's a bit much, and I'm wary of the quality, but this is something nearly impossible to pass up.