Unknown World 1951

Synopsis:

With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.

Directed by: Terry O. Morse
Written by: Millard Kaufman
Runtime: 74 minutes
Tagline: Drilling into the forbidding depths of the earth!
Cast:
Bruce Kellogg
Bruce Kellogg
Wright Thompson, Jr. 
Otto Waldis
Otto Waldis
Dr. Max A. Bauer 
Jim Bannon
Jim Bannon
Andrew "Andy" Ostergaard 
Tom Handley
Tom Handley
Dr. James Paxton 
Dick Cogan
Dick Cogan
Dr. George Coleman 
George Baxter
George Baxter
Carlisle Foundation Chairman