Sven- Frogs (1972)

 

On a local island run by polluting idiots nature takes revenge.  Lizards, snakes, tarantulas, turtles and frogs decide to strike back at these morons.  Four people do escape, at least we are led to believe that.  The rest of the cast ends up as animal food, even the three people that don't deserve it (these three people may have escaped, the movie doesn't actually show them being killed).  Finally, leaving the stubborn patriarch is left alone on the island and the frogs overwhelm his mansion.  They must have scared him to death.  I hope the amphibians didn't kill the innocent and cute dog, Colonel.

I remember seeing the ads for this film on TV and at age 7=8 it looked scary.  The movie showed up on television shortly after the theatrical run.  I tried watching it a few times, but like most "eco-horror" movies where the animals mysteriously turn on humans, there is a logical leap of faith you have to take.  And they are almost always kind of boring.  This one has a great cast, led by Ray Milland and Sam Elliot.  Joan van Ark is still in the beginning of her career, but since her character survived, perhaps the future Spider-Woman had an "in".

Next- It Came From Outer Space (now we're talking!