Two more that I just thought of...

FAUSTINA (1957)...I have a dvd of this that I found at K-Mart for a couple of dollars (they sell tons of Mexican films), but it has no subtitles...however, it is still quite interesting and I would love to see a subtitled release of it.

SWAMP OF THE LOST MONSTER...I may be in the minority but I recall enjoying this film in it's dubbed version.