| Steve Atteberry | ... | Himself - Caver | |
| Nancy Holler Aulenbach | ... | Herself | |
| Hazel Barton | ... | Herself | |
| Gordon Brown | ... | Himself | |
| Marty Brown | ... | Himself - Caver | |
| Mark Clippinger | ... | Himself - Caver | |
| Scott Davis | ... | Himself - Caver | |
| Scott Dawson | ... | Himself - U.C. Berkeley (as Scott Dawson Ph.D.) | |
| José R. de la Torre | ... | Himself - U.C. Berkeley (as José R. de la Torre Ph.D.) | |
| Sam Drevo | ... | Himself | |
| Jorge Gonzalez | ... | Himself | |
| Steffen Heim | ... | Himself - U.C. Berkeley (as Steffen Heim Ph.D.) | |
| Kevin Higgins | ... | Himself - Caver | |
| Rebecca Holden | ... | Herself - Caver | |
| Janot Lamberton | ... | Herself | |
| Mael Lamberton | ... | Himself | |
| Rebecca Middleton | ... | Herself - U.C. Berkeley | |
| Luc Moreau | ... | Himself | |
| Liam Neeson | ... | Himself - Narrator (voice) | |
| Rueben Novelo | ... | Himself | |
| Carolyn Rasmussen | ... | Herself - U.C. Berkeley | |
| George Stowe-Raines | ... | Himself - Caver | |
| Denver West | ... | Himself - Caver | |
| Margaret Zupancic | ... | Herself - U.C. Berkeley |
Directed by | |||
| Stephen Judson | (as Steve Judson) | ||
Writing credits(in alphabetical order) | ||
| Jack Stephens | ||
Produced by | |||
| Michael J. Cudahy | .... | executive producer | |
| Stephen Judson | .... | producer (as Steve Judson) | |
| Alec Lorimore | .... | producer | |
| Greg MacGillivray | .... | producer | |
Original Music by | |||
| Graeme Edge | |||
| Daniel May | |||
| Ray Thomas | |||
| Steve Wood | |||
Cinematography by | |||
| Brad Ohlund | (director of photography) | ||
Film 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 Rio | .... | production manager: Mexico | |
| David Frost | .... | production manager | |
| Earl Wiggins | .... | unit production manager | |
Sound Department | |||
| Paul Curtis | .... | dialogue editor | |
| Andrew DeCristofaro | .... | sound effects designer | |
| Marshall Garlington | .... | sound | |
| David Myslek | .... | sound editor | |
| Michael Orlowski | .... | sound effects editor | |
| Scott Reed | .... | post-production sound manager | |
| Aaron Rihel | .... | sound recordist | |
| Martin Schloemer | .... | sound recordist | |
| Ann Scibelli | .... | sound effects editor: EFX Systems (as Anne Scibelli) | |
| Dan Scolnik | .... | foley cue | |
| Dan Scolnik | .... | foley editor | |
| Bob Stewart | .... | additional dialog editor | |
| Ken Teaney | .... | sound mixer: Wilshire Stages | |
| David Abrahamsen | .... | sound editor (uncredited) | |
Visual Effects by | |||
| Daniel Rapo | .... | scanning & film recording | |
Editorial Department | |||
| Charlie Fuguet | .... | post-production consultant: DKP 70MM Inc. | |
| Craig Edward Rogers Jr. | .... | post-production assistant | |
Other 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 Chase | .... | production coordinator | |
| Tom Cowan | .... | segment director | |
| Kim Cummingham | .... | in remembrance of: caving and research pioneer | |
| Kim Cunningham | .... | science advisor | |
| Damian Doucette | .... | location scout | |
| 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) | |
| Jade Moser | .... | location assistant | |
| 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.) | |
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| From River to Sea | The Greatest Places | Still Kicking: Six Artistic Women of Project Arts & Longevity | Shackleton's Antarctic Adventure | Rise N Shine: A Hero's Journey |
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| Full cast and crew | Company credits | External reviews |
| IMDb Documentary section | IMDb USA section |
I first saw this IMAX film in Sydney on my trip down under. Not only was it amazing to see some of the most beautiful footage on a screen that is over 8 stories high, but the story was also very interesting to me. It had some incredible climbing scenes...112F in the Grand Canyon, 500' down into ice caves in Greenland, Bats in Georgia, and underwater cave diving in the Yucatan. It not only deals with the sport of caving, but one of the ladies in the film is a micro-biologists who is collecting rare extremophiles, microorganisms that live in extremely harsh environments, for scientific research. It was narrated by Liam Neeson with music by The Moody Blues. I bought it on DVD, knowing it would lose a lot visually going from the IMAX screen to my TV. I'm glad I did, because it has a "making of" documentary that was just as interesting as the IMAX movie, showing both the technical aspects of what went into the shoot as well as the personal side of those involved.