Diving Bell Movie

[Rob1xboxking]

Can anybody help me find the name of this movie: well there is a few men and a woman who are in a diving bell and come up under the earth and they can not find there way back out, i know there is monsters and there is also lava i think, and i also know that there is only two survivors one man and one woman.it is not the land that time forgot and it is not petrified forest, so i guess that narrows it down a bit. anyway i wold gladly appreciate the help, also it is in color i think.it was also on turner or the other classic channel a few years ago. i was in the navy about 7 years so if would have to have been that long ago.thanks for your help in advance.//update, well it is none of those,i am trying to think of more. it was in the  1960's to early 1970's, and it might be black and white. if i can think of more i will keep updating keep trying and thanks for the info.

[Rayo Casablanca]

Was it set a long time ago? like 19th century?
Things to come to mind are Krakatoa and Warlords of Atlantis. But I don't think that's it.

[Ash]

Ah!  I've seen this movie but can't remember the title either.   
I'm curious to know what it is.

[RCMerchant]

 the INCREDIBLE PETRFIED WORLD,?

http://www.imdb.com/title/tt0053944/combined

http://www.youtube.com/watch?v=D-bSbxL-jbE

EDIT: Oh...in color...? Perhaps the the NEPTUNE FACTOR?

http://www.imdb.com/title/tt0070438/combined

http://www.youtube.com/watch?v=72ZzNa-aQl4

[Rev. Powell]

That would be the INCREDIBLE PETRFIED WORLD,I believe!

http://www.imdb.com/title/tt0053944/combined

http://www.youtube.com/watch?v=D-bSbxL-jbE

The plot does sound a lot like PETRIFIED WORLD.  I doubt anybody bothered to colorize that piece of tripe, though.

Maybe WARLORDS OF ATLANTIS?

[RCMerchant]

You read me mind! I was just researching that title on imdb when you posted!