Movies and TvShows featuring "underwater-city" theme.

Ariel, a sixteen-year-old mermaid princess, is dissatisfied with life under the sea and curious about the human world. With her best fish friend Flounder, Ariel collects human artifacts and goes to the surface of the ocean to visit Scuttle the seagull, who offers very inaccurate and comical knowledge of human culture. Ignoring the warnings of her father (King Triton) and head maestro (Sebastian the crab) that contact between merpeople and humans is forbidden (the sea's primary contact with humans involve fishermen, so King Triton considers humans as nothing more than mere predators), Ariel still longs to be part of the human world; to this end she has filled a secret grotto with all the human artifacts she has found. One night, Ariel, Flounder and an unwilling Sebastian travel to the ocean surface to watch a celebration for the birthday of Prince Eric, with whom Ariel falls in love. A sudden storm hits, during which everyone manages to escape in a lifeboat except for Eric who goes back to rescue his dog Max. He almost drowns saving Max but is saved by Ariel, who drags him to the beach. Although it seems that his heart isn't beating, Ariel notices that Eric is breathing. She sings to him but dives underwater when Max returns to Eric. Upon being assisted by his chancellor (Sir Grimsby), Eric has a vague impression that he was rescued by a girl with a beautiful voice; he vows to find her, and Ariel vows to find a way to join Eric. Triton and his daughters notice a change in Ariel, who is openly lovesick. Triton questions Sebastian about Ariel's behavior, during which Sebastian accidentally reveals the incident with Eric. Triton furiously confronts Ariel in her grotto, using his trident to destroy her collection of human treasures. After Triton leaves, a pair of eels, Flotsam and Jetsam, convince a crying Ariel that she must visit Ursula the sea witch, if she wants all of her dreams to come true. Ursula makes a deal with Ariel to transform her into a human for three days. Within these three days, Ariel must receive the 'kiss of true love' from Eric; otherwise, she will transform back into a mermaid on the third day and belong to Ursula. As payment for legs, Ariel has to give up her voice, which Ursula takes by magically removing the energy from Ariel's vocal chords and storing it in a nautilus shell. Ariel's tail is transformed into legs, leaving her naked except for her seashell bra. Sebastian and Flounder drag her to the surface. Meanwhile, Triton discovers Ariel and Sebastian's disappearance and, wracked with guilt over his behavior, orders a search for them. Eric and Max find Ariel on the beach. He initially suspects that she is the one who saved his life, but when he learns that she cannot speak, he discards that notion, to the frustration of both Ariel and Max (who knows the truth). He helps her to the palace, where the servants think she is a survivor of a shipwreck. Ariel spends time with Eric, and at the end of the second day, they almost kiss but are thwarted by Flotsam and Jetsam. Angered at their narrow escape, Ursula takes the disguise of a beautiful young woman named 'Vanessa' and appears onshore singing with Ariel's voice. Eric recognizes the song and, in her disguise, Vanessa/Ursula casts a hypnotic enchantment on Eric to make him forget about Ariel. The next day, Ariel finds out that Eric will be married to the disguised Ursula on a ship. She cries and is left behind when the wedding barge departs. Scuttle discovers that Vanessa is Ursula in disguise, and informs Ariel. As Ariel and Flounder chase the wedding barge, Sebastian informs Triton, and Scuttle is assigned to literally 'stall the wedding.' With the help of various animals, the nautilus shell around Ursula's neck is broken, restoring Ariel's voice and breaking Ursula's enchantment over Eric. Realizing that Ariel was the girl who saved his life, Eric rushes to kiss her, but the sun sets and Ariel transforms back into a mermaid. Ursula reverts to her true form and kidnaps Ariel. Triton appears and confronts Ursula, but cannot destroy Ursula's contract with Ariel. Triton chooses to sacrifice himself for his daughter, and is transformed into a polyp. Ursula takes Triton's crown and trident, which was her plan from the beginning. Ursula uses her new power to gloat, transforming into a giant, and forming a whirlpool that disturbs several shipwrecks to the surface, one of which Eric commandeers. Just as Ursula is set to use the trident to destroy Ariel, Eric turns the wheel hard to port and runs Ursula through the abdomen with the ship's splintered bowsprit, mortally wounding her. With her last breaths, Ursula pulls the ship down with her, but Eric escapes to shore in time. With Ursula gone, her power breaks and the polyps in Ursula's garden (including Triton) turn back into the old merpeople. Later, after seeing that Ariel really loves Eric and that Eric also saved him in the process, Triton willingly changes her from a mermaid into a human using his trident. She runs into Eric's arms, and the two finally kiss. In the final scene, an unspecified amount of time later, Ariel marries Eric in a wedding where both humans and merpeople attend.

SpongeBob takes leave from Bikini Bottom in order to track down, with Patrick, King Neptune's stolen crown. Plankton, Krabs' business rival, enacts a plot to steal the Krabby Patty secret formula. SpongeBob and Patrick head off for Shell City to retrieve the crown. Along the way, they encounter various obstacles and enemies, but with determination and the help of friends, they manage to overcome them all. They successfully retrieve the crown and return it to King Neptune, saving Mr. Krabs and restoring peace to Bikini Bottom.

Oscar, an underachieving blue streak cleaner wrasse, owes money to his boss and attempts to pawn a pearl. He becomes distracted at the racetrack and places a million-dollar bet on a long shot. When the bet fails, Oscar faces punishment. Meanwhile, in the wreck of the RMS Titanic, a family of great white sharks has a problem with their vegetarian son, Lenny. Lenny is sent to attack Oscar, but instead, he frees him before getting killed by an anchor. Oscar becomes known as the Sharkslayer and enjoys fame and wealth, but eventually realizes his actions have hurt those he cares about. With revenge plans against him, Oscar and Lenny stage an event to deceive Don Lino, the gangster shark boss. Oscar ultimately decides to be honest, reconciles with Don Lino, and embraces a happy life with his love interest, Angie.

When Gary gets kidnapped by Poseidon, SpongeBob and Patrick embark on a hilarious and dangerous mission to rescue him, facing challenges and meeting new friends along the way.

In a future where the polar ice-caps have melted and Earth is almost entirely submerged, a mutated mariner fights starvation and outlaw "smokers," and reluctantly helps a woman and a young girl try to find dry land. In this post-apocalyptic world, human population has been scattered across the ocean in isolated communities on artificial islands and decrepit sea vessels. The mariner, an antihero drifter with webbed feet and gills, sails the seas in his trimaran. When he enters an artificial atoll seeking to trade dirt, he becomes the target of pirates known as "Smokers." They are searching for a girl named Enola, who possesses a map to Dryland tattooed on her back. After the Smokers raid the atoll, the mariner reluctantly takes Enola and her guardian Helen with him on his boat. They are pursued by the Deacon, the captain of the Smokers, who wants the map. Along their journey, the mariner warms up to Enola and teaches her to swim. They encounter various challenges, including an underwater trip to gather dirt and the destruction of their boat by the Smokers. Eventually, they find refuge with a new group of survivors on a makeshift atoll. Determined to rescue Enola and stop the Deacon from finding Dryland, the mariner boards the oil tanker Exxon Valdez. He threatens to drop a flare into the oil reserve tank unless the Deacon releases Enola, resulting in the ship's explosion. The mariner saves Enola by bungee jumping and they join the others on the balloon-driven towards Dryland. They discover that Dryland is Mount Everest, where they begin a new civilization, while the mariner decides to sail off into the ocean, his home.

The Little Mermaid is a TV show about a young mermaid named Ariel who dreams of exploring the human world. She strikes a deal with the sea witch Ursula to become human for three days, but things don't go as planned. With the help of her friends, including the crab Sebastian, Ariel must navigate the challenges of both the underwater and human worlds.

Milo Thatch, a young linguist, embarks on an expedition with a group of explorers to find the lost continent of Atlantis. Along the way, they encounter danger, strange creatures, and the Atlantean civilization. As they delve deeper into the mysteries of Atlantis, they discover the truth behind the crystal that connects the Atlanteans and the treacherous plans of some expedition members.

Stingray follows the adventures of the crew of Stingray, a futuristic submarine commanded by Captain Troy Tempest. They are tasked with protecting the underwater city of Marineville from the menacing forces of King Titan and his underwater kingdom.

Yellow Submarine follows the adventures of The Beatles as they are transported to a surreal underwater world by a band of music-hating creatures. With the help of Captain Fred and his Yellow Submarine, The Beatles must save Pepperland from the villainous Blue Meanies and bring music, love, and peace back to the land.

Flash Gordon, a college boy, finds himself in a treacherous world ruled by the evil dictator, Ming the Merciless. With the help of his friends, Flash must fight against deception and double-crosses to save the day.

The stories are in the world of Salacia, a hidden kingdom under the sea, full of princes and princesses from different animal species.

Sharad, a brave sailor, discovers the secret location of the legendary city of Atlantis. He must face mortal combat matches, tightrope walking, and an invisible wall to conquer the kingdom and save his people.

When the Wright family moves into their new home, Russel is surprised to find a secret passage under his bed. This passage leads him and his dog Gus to the world of Under, where he discovers he is the new King and that Gus can talk! Russel and Gus quickly befriend the people and creatures of this mysterious land. Bob Wire and his evil team are continually conspiring to steal Russel's crown and become all-powerful rulers of the land.

Ariel and Eric's daughter, Melody, discovers her mermaid heritage and must rescue her mother from the evil Morgana.

In War-Gods of the Deep, a group of adventurers discover an underwater city and must navigate treacherous waters, sea monsters, and volcanic eruptions to survive. Along the way, they uncover ancient secrets and confront deadly creatures.

Captain Nemo and the Underwater City is a sci-fi adventure film set in an underwater city built by Captain Nemo. When a group of shipwreck survivors discovers the city, they must navigate the futuristic world and face various challenges. As they explore the advanced civilization, they also uncover a plot that threatens the city's existence. With time running out, Captain Nemo and the survivors must race against time to save the underwater city from its impending doom.

Hans Christian Andersen's The Little Mermaid tells the story of a young mermaid who saves a prince from a shipwreck and falls in love with him. She yearns to become human and make him fall in love with her, but must make a painful sacrifice in order to do so. With the help of a powerful witch, she agrees to trade her voice for a chance to be with the prince. However, the prince's true love lies elsewhere, and the mermaid must face the consequences of her choice.

In the small town of Marienbad, a dam is built over a flooded village, causing supernatural events to occur. As the townspeople try to uncover the truth behind the eerie occurrences, they are haunted by their own guilt and dark secrets. A photojournalist, a single mother, and a priest come together to confront the evil that lurks beneath the still waters.

In the kingdom of fairies, a curse has trapped the magical realm. The evil witch has cast a spell, causing chaos and destruction. The fairy princess must find a way to break the curse and restore peace. With the help of her loyal subjects and magical creatures, she embarks on a perilous journey. Along the way, she encounters treacherous sea creatures, battles with a gargoyle, and uncovers the hidden secrets of an underwater city. As she fights against the forces of evil, she must also confront her own inner demons and prove her bravery and strength.

When a ship captain receives a message about a lost city beneath the sea, he sets out to investigate. Along the way, he encounters treachery, deception, and a voodoo cult. As he unravels the scheme, he must navigate through secret passageways, avoid traps, and confront the high priest of the cult. Will he be able to save the day and uncover the truth?