Constance Dowling

Richard Egan, Constance Dowling, Herbert Marshall. It does not seem to be listed in guidebooks film more.

Sure. When I was a child in New York, he used to run almost every year on "The 4:30 Movie" on ABC during the "Week Giant Monsters."

You can see the whole movie online for free at:
http://chewymovies.com/Gog-172.htm

And watch the trailer on YouTube!
http://www.youtube.com/watch?v=rSSgM94sSxQ