Gamera vs. Guiron is a 1969 kaiju film, the fifth entry in the original Gamera series.
RELEASE DATE:
March 21, 1969
Gamera vs. Guiron
Maybe I'm crazy but I think this is truly funny stuff.
See more info here:
https://thetelltalemind.com/2014/12/09/gamera-vs-guiron-1969-the-visuals/
The Full Movie Here: