Overview
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
Cast
- Gene Evans as Steve Karnes
- André Morell as Prof. James Bickford
- Leigh Madison as Jean Trevethan
- John Turner as John
- Alastair Hunter as Dr. C. A. Morris, the village doctor
- Lloyd Lamble as Senior Admiral, at the Admiralty
- Jack MacGowran as Dr. Sampson, the paleontologist
- Maurice Kaufmann as Mini Submarine Officer
- Henri Vidon as Tom Trevethan
- Patrick Jordan as Photo Lab Aide