The Missus and I watched these on Wednesday night....
! No longer available (http://www.youtube.com/watch?v=qJ1UFrZ3AhY#)
BRIDE OF THE GORILLA (1951)
! No longer available (http://www.youtube.com/watch?v=uBSfRvxLPdA#)
KONG ISLAND (1968)
BRIDE OF THE GORILLA stars Raymond Burr as the foreman of a tobacco plantation in Borneo, with designs on (a) the plantation, and (b) the plantation owner's hot blonde trophy wife. He kills the old guy using a venomous snake. However, he incurs the wrath of an old native witch-woman, because, (a) she's loyal to the plantation owner, and (b), Burr has kicked her hot native niece to the curb in favor of Peroxide Barbie. To avenge these slights, the witch slips a wee sumthin'-sumthin' in Burr's drink, causing him to periodically turn into a yutz in a moth-eaten gorilla suit.
Also giving a standout performance is Lon Chaney Jr. as a native (!) police chief.
KONG ISLAND has a bunch of no-name Italians running around in the story of a mad doctor who has figured out a way to transistorize gorillas, so he can TAKE OVER THE WORLLLLLLLD!
There's also a hot jungle girl known as "The Sacred Monkey", for some reason.