The Incredible Petrified World (1958)

"You just listen to me, Miss Innocent. There's nothing friendly between two females. There never was. There never will be."
Professor Wyman (John Carradine) sends a crew down to the ocean depths, but there is an accident and the diving bell is lost. They survive, and find themseves stranded in an undersea cave. Then they mean someone else trapped there. Meanwhile on the surface the rescue attempt continues...
Overly talky flick that sucks all the adventure and drama out of the participants predicament.

teenage zombies (1959)

"Lets go water ski."
Some teenagers land on what they think is a deserted island, and end up in a dungeon for their pains. Enslaved by a female scientist with a thing for cocktail dresses and the soviets. Those trecherous commies are developing a nerve gas that will enslave the population.
A gee ain't teens great film, made on a shoestring, and it looks it. Throw in the red menace, a corrupt sheriff, the army and a zombied up gorilla, and you still have a terrible film!