Digging Up the Marrow

A documentary filmmaker turns his lens on an enigmatic conspiracy theorist who claims he's found the entrance to a vast underground city populated entirely by monsters.

• 
  Adam Green

• 
  Ray Wise
  William Dekker
• 
  Adam Green
  Self
• 
  Kane Hodder
  Self
• 
  Mick Garris
  Self
• 
  Rileah Vanderbilt
  Self
• 
  Josh Ethier
  Self / Vance / Little Bigfoot
• 
  Tom Holland
  Himself
• 
  Sarah Elbert
  Self
• 
  Alex Pardee
  Self / Park Ranger
• 
  Nic Henley
  Harlequin
• 
  Caitlyn Brisbin
  Tombstone
• 
  Robert Pendergraft
  Shadow
• 
  Steve Agee
  Self
• 
  Steven Barton
  Self
• 
  Dave Brockie
  Oderus Urungus
• 
  Don Coscarelli
  Self
• 
  Evan Dickson
  Self
• 
  Corri English
  Self
• 
  Arwen Green
  Self
• 
  Lloyd Kaufman
  Self