Crack in the World (1965)

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.

This product uses the TMDb API but is not endorsed or certified by TMDb.
It is also all a bit beta still, Sory about that.