In 1996, treasure hunter Brock Lovett and his team aboard the research vessel Akademik Mstislav Keldysh search the wreck of RMS Titanic for a necklace with a rare diamond, the Heart of the Ocean. They recover a safe containing a drawing of a young woman wearing only the necklace dated April 14, 1912, the day the ship struck the iceberg. Rose Dawson Calvert, the woman in the drawing, is brought aboard Keldysh and tells Lovett of her experiences aboard Titanic.
By 2154, humans have depleted Earth's natural resources, leading to a severe energy crisis. The Resources Development Administration, RDA for short, mines for a valuable mineral – unobtanium – on Pandora, a densely forested habitable moon orbiting the gas giant Polyphemus in the Alpha Centauri star system. Pandora, whose atmosphere is poisonous to humans, is inhabited by the Na'vi, 10-foot tall (3.0 m), blue-skinned, sapient humanoids who live in harmony with nature and worship a mother goddess called Eywa.
In response to taxation on trade routes in the Galactic Republic, the Trade Federation organizes a blockade of battleships around the planet Naboo. Supreme Chancellor Valorum dispatches Jedi Master Qui-Gon Jinn and his apprentice Obi-Wan Kenobi to negotiate with the Trade Federation leadership to end the blockade. Darth Sidious, a Sith Lord and the Trade Federation's secret adviser, orders Federation Viceroy Nute Gunray to kill the Jedi and invade Naboo with an army of battle droids. The Jedi flee to Naboo, where Qui-Gon saves Gungan outcast Jar Jar Binks from being killed during the invasion. Indebted to the Jedi, Jar Jar leads them to an underwater Gungan city. There the Jedi try but fail to persuade the Gungan leader, Boss Nass into helping the people of Naboo, though they are able to obtain transportation to Theed, the capital city on the surface. They rescue Queen Amidala, the ruler of the Naboo people, and escape the planet on her royal starship, which is damaged as they pass the Federation blockade.
After Flint Lockwood and his friends save the world from the food storm in the first film, super-inventor Chester V, the CEO of Live Corp, is tasked to clean the island. He relocates Flint, his friends, and the citizens of Swallow Falls to San Franjose, California. Unbeknownst to Flint, the FLDSMDFR survived the explosion and landed in the center of the island, and Chester is determined to find it. Chester invites Flint, his biggest fan, to work at Live Corp, where he meets Chester's assistant Barb, a talking orangutan with human intelligence. Six months later, Flint humiliates himself during a promotion ceremony when his invention, the "Celebrationator", explodes. Meanwhile, Chester is informed that his search-parties on the island have been attacked by monstrous cheeseburgers named Cheespiders (a combination of a Cheeseburger and a Spider) which are learning how to swim. Seemingly fearing the world's inevitable doom, Chester tasks Flint to find the FLDSMDFR and destroy it once and for all. Despite Chester's demands to keep the mission classified, Flint recruits his girlfriend, meteorologist Sam Sparks; her cameraman Manny; police officer Earl Devereaux; Steve, a monkey who communicates via a device on his chest; and "Chicken" Brent. Much to Flint's dismay, his father Tim joins the crew and they travel to Swallow Falls on his fishing boat.
Harry Potter is a seemingly ordinary boy, living with his hostile relatives, the Dursleys in Surrey. On his eleventh birthday, Harry learns from a mysterious stranger, Rubeus Hagrid, that he is actually a wizard, famous in the Wizarding World for surviving an attack by the evil Lord Voldemort when Harry was only a baby. Voldemort killed Harry's parents, but his attack on Harry rebounded, leaving only a lightning-bolt scar on Harry's forehead and rendering Voldemort powerless. Hagrid reveals to Harry that he has been invited to attend Hogwarts School of Witchcraft and Wizardry. After buying his school supplies from the hidden London street, Diagon Alley, Harry boards the train to Hogwarts via the concealed Platform 9¾ in King's Cross Station.
In the Second Age of Middle Earth, the Dark Lord Sauron forges the One Ring in Mount Doom to conquer all. An alliance of men and elves battle Sauron’s forces in Mordor, where Isildur kills Sauron by chopping off the hand wearing the One Ring. Sauron's spirit survives within the ring and corrupts Isildur so that he keeps it instead of destroying it. This decision leads to Isildur's being killed by Orcs, and the ring is lost in the river Anduin for 2500 years. It comes into the possession of Sméagol who is consumed by its power and becomes Gollum. After 500 years the ring abandons him, to be discovered by a Hobbit named Bilbo Baggins.
Gandalf leads Aragorn, Legolas, Gimli, and King Théoden to Isengard where they reunite with Merry and Pippin, who helped the Ents destroy Saruman’s forces. With Saruman himself defeated, Gandalf retrieves Saruman’s palantír which is viewed by a curious Pippin, allowing Sauron to attack the Hobbit’s mind. Gandalf deduces Sauron will attack Gondor’s capital Minas Tirith, riding there with Pippin. They meet Lord Denethor, steward of Gondor, and Boromir’s father. Pippin declares his service to Denethor after Boromir died protecting him.
Shrek and Fiona return from their honeymoon to find they have been invited by Fiona's parents to a royal ball to celebrate their marriage, an event Shrek is reluctant to participate in. Fiona talks him into it, and along with Donkey, they travel to the kingdom of Far Far Away. They meet Fiona's parents, King Harold and Queen Lillian, who are surprised to see their daughter as an ogre, with Harold particularly upset. At dinner, Shrek and Harold get into a heated argument over how Shrek and Fiona will raise their family, and Fiona, disgusted at Shrek's behavior, locks herself away in her room that evening. Shrek worries that he has lost his true love, particularly after finding her childhood diary and reading that she was once infatuated with Prince Charming.
The wedding of Will Turner and Elizabeth Swann is crashed by Lord Cutler Beckett of the East India Trading Company, who has arrest warrants for the couple along with Commodore James Norrington, for allowing Captain Jack Sparrow to escape custody. Norrington resigned after his crew died in a typhoon. Elizabeth is imprisoned, but Beckett promises to free her if Will tracks down Jack and brings him his magic compass which points to whatever the holder wants most. Shortly after, Governor Swann tries to escape Port Royal with Elizabeth but is captured. Elizabeth negotiates with Beckett to let her escape to find the compass herself.
Frodo Baggins and Samwise Gamgee continue their journey to Mordor to destroy the One Ring by throwing it into Mount Doom. They are attacked in the night by Gollum, former owner of the Ring, but they capture him. Sympathising with Gollum for their shared burden, Frodo asks Gollum to lead them safely to Mordor, despite Sam’s objections. Meanwhile, Aragorn, Legolas, and Gimli pursue the Uruk-hai who kidnapped their friends Merry and Pippin. The Uruk-hai are slaughtered by the Rohirrim army of Rohan, but the two Hobbits escape into Fangorn Forest where they meet the Ent Treebeard. Aragorn’s group later meet the Rohirrim who have been banished by their king Théoden, who is manipulated by Saruman’s servant Grima Wormtongue. Tracking the Hobbits in Fangorn, Aragorn’s group encounter a resurrected Gandalf who perished in Moria, but was revived to help save Middle Earth.
Two ocellaris clownfish, Marlin and his wife Coral, admire their new home in the Great Barrier Reef and their clutch of eggs when a barracuda attacks, knocking Marlin unconscious. He wakes up to find that Coral and all but one of the eggs have disappeared. Marlin names this last egg Nemo, a name that Coral liked.
The Asgardian Loki encounters the Other, the leader of an extraterrestrial race known as the Chitauri. In exchange for retrieving the Tesseract, a powerful energy source of unknown potential, the Other promises Loki an army with which he can subjugate Earth. Nick Fury, director of the espionage agency S.H.I.E.L.D., and his lieutenant Agent Maria Hill arrive at a remote research facility during an evacuation, where physicist Dr. Erik Selvig is leading a research team experimenting on the Tesseract. Agent Phil Coulson explains that the object has begun radiating an unusual form of energy. The Tesseract suddenly activates and opens a wormhole, allowing Loki to reach Earth. Loki takes the Tesseract and uses his scepter to enslave Selvig and a couple of agents, including Clint Barton, to aid him in his getaway.
High-school senior Peter Parker visits a genetics laboratory with his friend Harry Osborn and love interest, Mary Jane Watson for a school field trip. There, Peter is bitten on the hand by a genetically engineered "super spider". Shortly after arriving home to his Aunt May and Uncle Ben, he goes unconscious. Meanwhile, Harry's father, scientist Norman Osborn, owner of Oscorp, is attempting to preserve his company's critically important military contract. He experiments on himself with a new but unstable performance-enhancing chemical vapor that increases his speed, strength, and stamina. However, it also drives him insane and he kills his assistant, Mendel Stromm. The next morning, Peter finds that his previously impaired vision has improved and his body has metamorphosized into a more muscular physique. At school, he finds that his body can produce webs and his quickened reflexes let him avoid injury during a confrontation with bully Flash Thompson. Peter discovers he has developed superhuman speed, strength, the ability to stick to surfaces, and a heightened ability to sense danger.
Harry Potter spends the summer at the Dursleys' house without receiving letters from his Hogwarts friends. He is sent to his room by The Dursleys to avoid embarassing them in front of Uncle Vernon's friends, who are coming over as guests.