Crack in the World is a 1964 science fiction movie directed by Andrew Marton. Dr. Steven Sorenson (Dana Andrews) is in Africa leading Project Inner Space, a team of scientists planning to harness Earth's geothermal energy by drilling a hole to the planet's core and detonating a bomb. Even though the team's head geologist, Dr. Ted Rampion (Kieron Moore), warns Dr. Sorenson not to go forward with his plan, Sorenson, who is dying of cancer, still decides to set off the atomic bomb to ensure his own legacy. After hydrogen under the ground turns the atomic reaction into a disastrous thermonuclear explosion, a large crack begins spreading across the surface of the Earth. Dr. Sorenson and his team must race to stop the crack before it splits the Earth in half and kills everybody on the planet. Although this film has dubious scientific accuracy, many science fiction fans still applaud it as a classic of the genre.