Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. This experiment causes a crack to form and grow within the Earth's crust, which threatens to split the earth in two if it is not stopped in time.
You can now watch Crack in the World online on the following streaming providers in the United States.
| Directing | Andrew Marton | Director |
| Production | Lester A. Sansom | Producer |
| Production | Bernard Glasser | Producer |
| Writing | Julian Zimet | Screenplay |
| Writing | Jon Manchip White | Story |
| Writing | Jon Manchip White | Screenplay |
| Editing | Derek Parsons | Editor |
| Art | Eugène Lourié | Art Direction |
| Crew | Eugène Lourié | Special Effects |
| Costume & Make-Up | Josefa Rubio | Hairstylist |
| Costume & Make-Up | Carmen Martín | Makeup Artist |
| Crew | Alex Weldon | Special Effects |
| Costume & Make-Up | Laure Lourié | Costume Design |
| Camera | Manuel Berenguer | Director of Photography |
| Production | Philip Yordan | Executive Producer |
| Production | Tíbor Reves | Production Manager |
| Sound | Johnny Douglas | Original Music Composer |
| Sound | Maurice Askew | Sound Recordist |
| Directing | Isabel Ruiz Capillas | Script Supervisor |
| Sound | Kurt Herrnfeld | Sound Editor |
| Directing | José María Ochoa | Assistant Director |
| Sound | David Hildyard | Sound Recordist |
| Sound | Johnny Douglas | Conductor |
