Don't listen to the negative reviews

Absolutely Fantastic

Fanciful, disturbing, and wildly original, it announces the arrival of a fresh, bold voice in American cinema.

This movie feels like it was made purely to piss off people who want good shows

I haven't seen this film since 1964, except for excerpts on YouTube. My recollection is that it was the most beautiful film I had ever seen. That said, the other reviewer here (Martin Hafer) comments that the YouTube version is faded, which is either true, or my memory of the original is unclear... I first want to comment on the summary at the top of this page: it's rubbish: "mostly filmed in deep-water seas from within a special designed batiscaff, by the Cousteau family of sea explorers." It was not filmed in deep water, it was filmed nearly entirely (see below for the exception) on a shallow coral reef in the Red Sea. There was not "batiscaff", nor yet any bathyscaphe. A bathyscaphe is a very deep water (abyssal or hadal) craft consisting of a steel sphere hanging from a large float, the float typically containing gasoline (because it's lighter than water). The Calypso's diving saucer, which is featured in this movie, is a small disk-shaped submarine capable of descending to about 1000 feet (300 meters). And finally, while Cousteau's wife is featured in the film, this is not a film about his family: most of the divers are not related to him at all.Most of the action takes place at the Conshelf II station, 10 meters down, or the "Deep Cabin" at 30 meters. It was fascinating at the time to consider living underwater, and I dreamed of someday having such a house. For the most part that picture has not been realized in the way expected at the time (nor do I have my underwater house). Underwater "habitats" have been used by marine biologists, but many other things can be accomplished more easily in other ways.The film becomes a bit hokey at times, as when Jacques Cousteau is standing in the ten meter house drawing a diagram of the two structures for his people. They obviously know all about it, and look suitably bored. (They're also smoking, which was typical back then.) There's another scene in which the diving saucer surfaces inside a cave that is both above and below water--but that was filmed in the Med, nowhere near Conshelf II, and was probably included because it was entrancing, and there was no other film to put it in.But all in all, a gorgeous view of a future that could have, but didn't, happen.

The copy of "World Without Sun" that I found on YouTube leaves a lot to be desired. Due to decomposition, the print is very washed out and it looks almost as if the movie was originally made in black & white. Considered how good the film SHOULD look, you might try finding a restored copy...it it's available. I sure would have LOVED to have seen this on the big screen!!The film itself is a documentary showing what life was like aboard Continental Shelf Station #2--a small village, of sorts, made up of various submerged structures. The Cousteau team lived in this underwater base and it consisted of dorms, laboratories, rec rooms and more. Most of the buildings are near the surface (I am guessing 30- 40 feet deep) but one is very deep and was used to research the effects of extreme depths on men living there for a week at a time. Additionally, you see a very deep dive with their mini-sub, daily routines and the men pestering many fish species (it really DID look that way in many of the clips). I think much of this is because in the early days, Cousteau was interested more in exploitation of the ocean, whereas in the 60s, 70s and 80s he was known much more for conservation. The overall film is very interesting and must have been quite a sensation when it was released. Nowadays, with the various Cousteau television shows, it's not so novel....but still is quite interesting and garnered an Oscar for Best Documentary.By the way, I am a scuba diver and seeing the sharks avoiding the structures and a barracuda watching over them out of curiosity is NOT a surprise at all. Barracuda often watch during dives or hang out under the ships and are amazingly docile towards divers provided you aren't stupid and don't try to pet them!!