Linbeymusol Wonderful character development!

FirstWitch A movie that not only functions as a solid scarefest but a razor-sharp satire.

Mabel Munoz Just intense enough to provide a much-needed diversion, just lightweight enough to make you forget about it soon after it’s over. It’s not exactly “good,” per se, but it does what it sets out to do in terms of putting us on edge, which makes it … successful?

Logan By the time the dramatic fireworks start popping off, each one feels earned.

Brian Washington This is one of the finest of the non-Godzilla epics by Ishiro Honda and Toho. It definitely has all the elements that make for a great film great story, great action and an interesting twist at the end. What really stands out is the fact that Honda pretty much took a near impossible situation in working with several American actors who didn't speak Japanese and was able to do a decent job in directing them. However, the thing that really was interesting about this film was the fact that this film marks what probably is the first and only time that Akira Takarada and the late, great Akihiko Hirata are heard speaking English with their own voices after years of being dubbed. This film is definitely one of the finest to come from Toho.

OllieSuave-007 I bought this movie only to make my Toho movie collection more complete. A very different Toho film, where we have actors Joseph Cotton and Akira Takarada as the leads, journeying into another world and another dimension below the sea, where everybody seemed to be living in peace. But, the peace is threaten by a mad scientist, played by Cesar Romero. Monsters appear in this film, in the form of gigantic rats and lions.This movie is somewhat dull and not as exciting as earlier Toho sci-fi movies of the 60s. The monster scenes and human characters were dull. To the casual sci-fi viewer, this movie would probably be an OK viewing pleasure. But to the faithful Toho sci-fi fans, this movie does not quite cut it. It does have some action in it, but it is just a far departure from the usual Toho. Grade D+

keviniod Nothing against Godzilla, but I think that this movie is Toho's best and very under rated. It's almost impossible to buy in North America. There is major high-tech sub action, multi-weapon gloves and really cool 60's sci-fi effects up the wazoo. The humor and acting are up to the usual Toho standards. If your vintage sci-fi nerd (like me), you'll love it!

anniefla I saw this film while it was in first run, back in 1969. Expecting an action film, what I recall seeing was one of the worst most laughable bombs in cinematic history. The special effects were amateurish and the acting dreadfully stiff. A Japanese movie with two has-been American actors edited in.When I first discovered Mystery Science Theater 3000 back in the early '90s this film immediately came to mind as perfect fodder for a send-up. I don't know if they ever got around to spoofing it, but Joel and the crew should have.Don't waste your time on this turkey.