- DIRECTOR
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- Kevin Connor
- WRITERS
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- Edgar Rice Burroughs
- Milton Subotsky
- STUDIOS
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- Production Companies
- Amicus Productions
- American International Pictures (AIP)
- Burroughs Productions Inc.
- WEBSITE
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- N/A
A Victorian scientist and his young American backer set off in their new earth-boring machine with a short test on a Welsh mountain. Unfortunately the thing is rather more powerful than expected and they end up in an enormous cavern at the centre of the earth. Here they find a race of humans enslaved to evil oversized prehistoric birds with extra-sensory abilities. The travellers decide they can be some help, the more so as at least one of the slaves is very eye-catching. —Jeremy Perkins {J-26}firewallhuman sacrificemind controlmonsterexplosion39 morePlot summaryAdd synopsisTaglinesThey're in it DEEP now!GenresAdventureFantasySci-FiCertificatePGParents guide
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