Help! Searching For A Si-Fic Movie

long time ago i watched a movie..could nt remember the name..just wanna know the name of that movie..if any one knows .pls pls let me know..

Description - its a science fiction movie..where the main character was a guy of 22-27 years old probably.he had a Father..n they travelled beneath the earth to save a girl from monstrous creatures...

could be it Space Truckers, 1996 ?

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"We're all genyav. He's a collective manifestation of all our greatest hopes and fears, our most rapturous dreams, our most horrific nightmares..." - planet news

Could it be "At The Earth's Core" from 1976.

http://www.imdb.com/title/tt0074157/?ref_=sr_2