The Magnetic Monster 1953

Synopsis:

The Office of Scientific Investigations tracks down the source of increased magnetism and radioactivity in Los Angeles, and discovers that a man-made isotope is consuming available energy from nearby mass every few hours, doubling its size in the process. Although microscopic, it will soon become big enough to destroy Earth; and how to stop it is yet to be determined. The film's Deltatron special effects footage is taken from the 1934 German sci-fi film GOLD.

Directed by: Curt Siodmak & Herbert L. Strock
Written by: Curt Siodmak & Ivan Tors
Runtime: 76 minutes
Tagline: Terror swoops through the heart of a city in the dead of night!
Cast:
Richard Carlson
Richard Carlson
Dr. Jeffrey Stewart 
King Donovan
King Donovan
Dr. Dan Forbes 
Leo Britt
Leo Britt
Dr. Benton 
Jean Byron
Jean Byron
Connie Stewart 
Harry Ellerbe
Harry Ellerbe
Dr. Allard 
Frank Gerstle
Frank Gerstle
Col. Willis