This is Bert I. Gordon's rookie outing in the world of film making. Known to his fans as "Mr. B.I.G." not only because of his initials, but for using rear screen projections of various living creatures throughout his long movie career. Sadly, this film doesn't have his trademark style.
Partially narrated from Sonny Tuft's point-of-view, the movie's plot is very familiar and very "old hat". Sonny Tuft looks like a cross between the Skipper and his little buddy from Gilligan's Island. Rosalind Hayes is very stiff and unconvincing as an actress. Her performance reeks of being that of a Junior High School's drama club student. There is no romantic chemistry between Tufts and Hayes, although she must have spent more time in a science lab than on the school's cafeteria stage.
You get plenty of footage from a real Haitian voodoo ceremony. Too much footage. Go get yourself a snack when you hear the bongo drums and chanting. Or fashion a doll of Rosalind Hayes thus using pins in a more productive aspect than plunging them into your eyes after the first half-hour.
The biggest let down is the snake of Serpent Island. When you see Mr. B.I.G.'s name on the video box you're thinking "Man, I bet he used a cobra and made it look like it's as long as a football field!". The title monster is nothing more than your everyday, garden variety boa constrictor. And not a very big one at that. I did find myself perked up a bit once the snake started to wrap itself around Ms. Hayes' neck, though.
Unless you're a completist fan of Mr. Bert I. Gordon, you should skip this offering. There is nothing notable about this movie other than being his first foray onto the silver screen. You're better off jumping straight to his second picture "KING DINOSAUR". That was the true beginning for Mr. B.I.G.!