mrb1980 Watching this film always reminds me of the much superior "The Thing (from Another World)", the wonderful 1951 Howard Hawks movie about an alien terrorizing an Arctic base. Here, the setting is an underwater research lab, staffed by naive scientists and accompanied by the steel-jawed Commander Wayne (Scott Brady).The gill-man alien does a great job of menacing the crew throughout the whole movie. Naturally, Commander Wayne knows it's a kill-or-be-killed situation, while the befuddled scientists sort of stand around. The alien tries to duplicate itself (a la "The Thing") but the Commander of course saves the day at the end.The shopworn script borrows heavily from "The Thing", the gill-man is less than convincing (you can see where the air tank is hidden), and the special effects--if you want to call them that--are just horrible. The miniatures are among the most unconvincing in movie history.Besides Brady, well-known stars Gary Merrill and Sheree North are among the cast, along with several unknowns. The stars must have needed the money, I guess. Watching this film is better than a trip to the dentist, but that's about it.

Submariner I rate this movie to be like..."The creature from the black lagoon" meets a bad episode of "Sea Hunt", meets "Mars needs women". But....you have to remember the 60's didn't have computer graphics special effects. And you must remember this was a low budget movie. It is ok to watch for a laugh if you watch it in the spirit of the times in which it was made. I like this movie particularly because I have acquired and own the twelve foot long, red, torpedo shaped, twin open cockpits, wet submarine that was used in this movie. It's neat to own a piece of the original equipment from this movie.

TVholic This isn't a B-flick. It's worse, it's a C-flick. Sea-flick? See?Now that my really bad joke is out of the way, I can say this movie is one really bad joke on the audience. To say that the science is flawed is an understatement. (The specimens in the biology lab will die without air?!? They're a sealab; their purpose is to study water-breathing life!) The bombast-filled score is nothing more than stale leftovers from the 1950s, straining at almost every moment to add suspense where none exists. The sets are among the least convincing I've ever seen and the special effects are laughable. The "giant" spaceship and the sealab look like the 12-inch miniatures they probably were. The rubber-suited monster is not scary at all even when poor bluescreen matting makes it look several times larger that life. Worst of all, it commits the cardinal sin that distinguishes truly bad movies from the classics like "Plan 9 from Outer Space," it's no fun. It makes Irwin Allen's "Voyage to the Bottom of the Sea" series look like "Star Wars." Even the eminently forgettable "DeepStar Six" and "Leviathan" were an order of magnitude better than this. It's almost enough to make me rent "Sphere" and finally see the second half. Almost, but nothing's quite that bad.

kerryandchuck While the movie offers many standard Sci-Fi,B-Movie moments, several good aspects are evident. The action sequences, especially underwater scenes were filmed well,and diving enthusiasts may notice Wende Wagner's performance as vital to their success. Wende had appeared in a "Flipper" episode around same time frame, and her scuba performances are excellent. While I haven't seen this movie in many years(can't find it anywhere);the diving scenes still are memorable.