PG | | Adventure, Family, Sci-Fi
A scientist is nearly assassinated. In order to save him, a submarine is shrunken to microscopic size and injected into his blood stream with a small crew. Problems arise almost as soon as they enter the bloodstream.
The sound effects played over the opening credits were created for the computer in Desk Set (1957).
I bet you were very handy around the house. Do you cook?
Swim fins were not in use in any of the dive scenes though scuba diving requires them for propulsion. This may have been for the safety of the "divers" who were rigged with wires which have tangled up with the fins,
The DVD edition has the following prologue: "The makers of this film are indebted to the many doctors, technicians and research scientists, whose knowledge and insight helped guide this production" The TV/Video version features this prologue instead: "This film will take you where no one has ever been before; no eye witness has actually seen what you are about to see. But in this world of ours where going to the moon will soon be upon us and where the most incredible things are happening all around us, someday, perhaps tomorrow, the fantastic events you are about to see can and will take place."