Directed by
| Stephen Judson | ... | (as Steve Judson) |
Writing Credits (in alphabetical order)
| Jack Stephens | ||
Cast
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Steve Atteberry | ... | Self - Caver |
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Nancy Holler Aulenbach | ... | Self |
| Hazel Barton | ... | Self | |
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Gordon Brown | ... | Self |
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Marty Brown | ... | Self - Caver |
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Mark Clippinger | ... | Self - Caver |
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Scott Davis | ... | Self - Caver |
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Scott Dawson | ... | Self - U.C. Berkeley (as Scott Dawson Ph.D.) |
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José R. de la Torre | ... | Self - U.C. Berkeley (as José R. de la Torre Ph.D.) |
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Sam Drevo | ... | Self |
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Jorge Gonzalez | ... | Self |
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Steffen Heim | ... | Self - U.C. Berkeley (as Steffen Heim Ph.D.) |
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Kevin Higgins | ... | Self - Caver |
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Rebecca Holden | ... | Self - Caver |
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Janot Lamberton | ... | Self |
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Mael Lamberton | ... | Self |
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Rebecca Middleton | ... | Self - U.C. Berkeley |
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Luc Moreau | ... | Self |
| Liam Neeson | ... | Narrator (voice) | |
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Rueben Novelo | ... | Self |
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Carolyn Rasmussen | ... | Self - U.C. Berkeley |
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George Stowe-Raines | ... | Self - Caver |
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Denver West | ... | Self - Caver |
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Margaret Zupancic | ... | Self - U.C. Berkeley |
Produced by
| Michael J. Cudahy | ... | executive producer |
| Stephen Judson | ... | producer (as Steve Judson) |
| Alec Lorimore | ... | producer |
| Greg MacGillivray | ... | producer |
Music by
| Graeme Edge | ||
| Daniel May | ||
| Ray Thomas | ||
| Steve Wood | ||
Cinematography by
| Brad Ohlund | ... | director of photography |
Editing by
| Stephen Judson | ||
Art Direction by
| John Riggs | ||
Production Management
| Cris Andrei | ... | production manager |
| Len Bucko | ... | production manager |
| Josh Colover | ... | production manager (as Joshua Colover) |
| Arturo del Río | ... | production manager: Mexico (as Arturo Del Rio) |
| David Frost | ... | production manager |
| Earl Wiggins | ... | unit production manager |
Sound Department
| Paul Curtis | ... | dialogue editor |
| Andrew DeCristofaro | ... | sound effects designer |
| Marshall Garlington | ... | sound |
| Mathew Hedges | ... | editorial assistants |
| Laura Macias | ... | foley artist |
| Michael A. Morongell | ... | mix engineer |
| David Myslek | ... | sound editor |
| Michael Orlowski | ... | sound effects editor |
| Scott Reed | ... | post-production sound manager |
| Aaron Rihel | ... | sound recordist |
| Stephen P. Robinson | ... | supervising sound effects editor |
| Sean Rowe | ... | foley artist |
| Martin Schloemer | ... | sound recordist |
| Ann Scibelli | ... | sound effects editor: EFX Systems (as Anne Scibelli) |
| Dan Scolnik | ... | foley cue / foley editor |
| Bob Stewart | ... | additional dialog editor |
| John C. Stuver | ... | foely editor |
| Ken Teaney | ... | sound mixer: Wilshire Stages |
| Jeffrey R. Whitcher | ... | sound effects editor (as Jeff Witcher) |
| David Abrahamsen | ... | sound editor (uncredited) |
Visual Effects by
| Daniel Rapo | ... | scanning & film recording |
Camera and Electrical Department
| Eric Anderson | ... | assistant camera |
| John Anderson | ... | assistant camera |
| Jacques Barthelemy | ... | underwater lighting |
| Chris Blum | ... | assistant camera |
| Gordon Brown | ... | cinematographer: ice caves |
| Michael Brown | ... | assistant camera (as Mike Brown) |
| Mark Chapman | ... | head rigger |
| Kevin Chase | ... | rigger |
| Pat Gilluly | ... | gaffer |
| Ron Goodman | ... | aerial camera operator |
| Howard Hall | ... | underwater cinematographer |
| Michael Kirsch | ... | assistant camera (as Mike Kirsch) |
| Dan Lins | ... | underwater gaffer |
| Bob MacDougall | ... | rigger (as Bob McDougal) |
| Greg MacGillivray | ... | cinematographer: Arkansas |
| Bill MacLeod | ... | electrician / key grip |
| Neeld Messler | ... | grip |
| Lance Milbrand | ... | assistant camera |
| Christos Moisides | ... | assistant camera |
| Tom Morris | ... | underwater gaffer |
| Patrick O'Dea | ... | grip |
| Jerry Pattin | ... | grip |
| Kim Pettersen | ... | underwater lighting |
| David Schultz | ... | head rigger |
| Todd Semmes | ... | rigger |
| Wes Skiles | ... | underwater cinematographer |
| Chuck Stevens | ... | underwater gaffer |
| Jack Tankard | ... | aerial camera operator |
| Joel Tower | ... | underwater gaffer |
| Robert Walker | ... | assistant camera |
| Gary Walten | ... | underwater gaffer |
| Earl Wiggins | ... | head rigger |
| Tom Zaudke | ... | underwater lighting |
Editorial Department
| Charlie Fuguet | ... | post-production consultant: DKP 70MM Inc. |
| Courteney Hall | ... | assistant editor |
| Scott Janush | ... | assistant editor |
| Matthew Muller | ... | post-production coordinator |
| Craig Edward Rogers Jr. | ... | post-production assistant |
| Robert Walker | ... | associate editor |
Location Management
| Damian Doucette | ... | location scout |
| Jade Moser | ... | location assistant |
Additional Crew
| Kit Anderson | ... | collaboration and contribution: Cincinnati Museum Center |
| Karol Bartlett | ... | science advisor |
| Hazel Barton | ... | science advisor (as Dr. Hazel Barton) |
| Jacqueline Belwood | ... | collaboration and contribution: Cincinnati Museum Center (as Dr. Jacqueline Belwood) |
| Rick Bridges | ... | technical advisor |
| DeVere Burt | ... | collaboration and contribution: Cincinnati Museum Center |
| Howard Chapman | ... | production assistant |
| Allison Coleman | ... | production coordinator (as Allison Chase) |
| Tom Cowan | ... | segment director |
| Kim Cummingham | ... | in remembrance of: caving and research pioneer |
| Kim Cunningham | ... | science advisor |
| Dave Duszynski | ... | collaboration and contribution: Cincinnati Museum Center |
| Janna Emmel | ... | researcher |
| Nancy Finley | ... | production coordinator |
| Barbara Flagg | ... | researcher (as Dr. Barbara Flagg) |
| Debbie Fogel | ... | controller |
| Mary Kaye Kennedy | ... | collaboration and contribution: Cincinnati Museum Center |
| Federico Laurent | ... | production assistant |
| Larry Mallory | ... | science advisor (as Dr. Larry Mallory) |
| Douglass McDonald | ... | collaboration and contribution: Cincinnati Museum Center |
| Luc Moreau | ... | science advisor (as Dr. Luc Moreau) |
| Norman Pace | ... | science advisor (as Dr. Norman Pace) |
| Arthur Palmer | ... | science advisor (as Dr. Arthur Palmer) |
| Margaret Palmer | ... | science advisor |
| Gordon Quattlebaum | ... | production coordinator |
| John Scheltens | ... | researcher: National Speleological Society |
| Wes Skiles | ... | segment director |
| Kay Walten | ... | production coordinator |
| Jill Yager | ... | science advisor (as Dr. Jill Yager) |
Thanks
| José R. de la Torre | ... | special thanks: College of Natural Resources, University of California at Berkeley (as José R. de la Torre Ph.D.) |
| Alaine Gerente | ... | special thanks: Group 47 |
| Antje Hofmeister | ... | special thanks: College of Natural Resources, University of California at Berkeley (as Professor Antje Hofmeister) |
| Bruce Russell | ... | special thanks: BioMEDIA Associates |
| Steven Ruzin | ... | special thanks: College of Natural Resources, University of California at Berkeley (as Steven Ruzin Ph.D.) |