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.
Unfortunately the movie Crack in the World is not yet available on Disney Plus.
| Directing | Andrew Marton | Director |
| Production | Lester A. Sansom | Producer |
| Production | Bernard Glasser | Producer |
| Sound | Johnny Douglas | Original Music Composer |
| Crew | Alex Weldon | Special Effects |
| Writing | Jon Manchip White | Screenplay |
| Editing | Derek Parsons | Editor |
| Production | Tíbor Reves | Production Manager |
| Costume & Make-Up | Laure Lourié | Costume Design |
| Writing | Jon Manchip White | Story |
| Costume & Make-Up | Carmen Martín | Makeup Artist |
| Production | Philip Yordan | Executive Producer |
| Crew | Eugène Lourié | Special Effects |
| Camera | Manuel Berenguer | Director of Photography |
| Writing | Julian Zimet | Screenplay |
| Costume & Make-Up | Josefa Rubio | Hairstylist |
| Art | Eugène Lourié | Art Direction |
| Directing | José María Ochoa | Assistant Director |
| Directing | Isabel Ruiz Capillas | Script Supervisor |
| Sound | Maurice Askew | Sound Recordist |
| Sound | Kurt Herrnfeld | Sound Editor |
| Sound | Johnny Douglas | Conductor |
| Sound | David Hildyard | Sound Recordist |
