Alex Rogan is a teenager living in a trailer park with his mother and little brother, Louis. Alex often plays Starfighter, an arcade game in which the player defends "the Frontier" from "Xur and the Ko-Dan Armada" in a space battle. He becomes the game's highest-scoring player, and is approached by the game's inventor, Centauri, who invites him to take a ride. Alex does so, discovering the car is a spacecraft. Centauri is an alien who takes him to the planet Rylos. An android duplicate named Beta takes Alex's place during his absence.
The Tracy family, led by former astronaut Jeff Tracy, operate International Rescue, a secret organization that aids those in need using the technologically advanced machines called Thunderbirds. The youngest son Alan lives at a boarding school on the mainland dreaming of being a Thunderbird pilot. He and his friend Fermat Hackenbacker, son of the Thunderbirds’ engineer Brains, are picked up by Lady Penelope Creighton-Ward and her butler Aloysius Parker. Lady Penelope is an International Rescue agent, travelling to Tracy Island in the South Pacific in her limo FAB 1. The Thunderbirds return from an oil rig fire, but Alan and Fermat play around in Thunderbird 1, discovering a strange compound splattered on the side. Unbeknownst to them, the compound is a tracking beacon being used by the Hood, a psychic criminal mastermind who has a vendetta against Jeff for not saving him in a collapsing diamond mine while his brother Kyrano was rescued.
In the near future, the Moon has been colonized and supports a station on its surface. A lunar shuttle known as Mayflower One is being rushed to launch from Houston. The head of the ground crew, The Sarge (Chuck Connors), does not like what is occurring, but he defers to the airline's management.
Set in San Francisco, California, down-on-his-luck Naval aviator Lt. Tuck Pendleton (Quaid) resigns his commission and volunteers for a secret miniaturization experiment. He is placed in a submersible pod and both are shrunk to microscopic size. They are transferred into a syringe to be injected into a rabbit, but the lab is attacked by a rival organization, led by scientist Dr. Margaret Canker (Fiona Lewis), that plans to seize the experiment and steal the miniaturization technology.
Professor Brainard (pronounced BRAY-nerd) is an absent-minded professor of physical chemistry at Medfield College who invents a substance that gains energy when it strikes a hard surface. This discovery follows some blackboard scribbling in which he reverses a sign in the equation for enthalpy to energy plus pressure times volume. Brainard names his discovery Flubber, which is a portmanteau of "flying rubber." In the excitement of his discovery, he misses his own wedding to Betsy Carlisle, not for the first time. Subplots include another professor wooing the disappointed Miss Carlisle, Biff Hawk's ineligibility for basketball due to failing Brainard's class, Alonzo Hawk's schemes to gain wealth by means of Flubber, the school's financial difficulties and debt to Mr. Hawk, and Brainard's attempts to interest the government and military in uses for Flubber.
A man frozen for 65 years is found in the ice of the North Pole by a scientific polar expedition. While he is brought back to life by professor Edouard Lauriebat (Michael Lonsdale), the man is identified as Paul Fournier, who was exploring the pole in 1905 and is now, thanks to hibernation, a 90 years old young man. Edmée de Tartas (Claude Gensac), born Fournier, is identified as the granddaughter of Paul and convinces her husband, Hubert Barrère de Tartas (Louis de Funès), that Paul must be given back to his family, while the government wishes to treat Paul as a research subject. After a kidnapping and a pursuit, the authorities reluctantly agree, but impose, for the sake of Paul's mental health, that his environment be the same as in 1905. As Paul thinks Edmée is his mother, Hubert must play the role of a man courting Edmée and Didier (Olivier de Funès), the son of Edmée and Hubert plays the role of a student living with the family. First under control, the situation gradually deteriorates especially when Paul's actions become a threat to Hubert's plan to marry his son to the daughter of Crepin-Jaujard, one of his business partners.
Claude Ratinier (Louis de Funès), known as Le Glaude, is an old man who lives on a small farm across the road from his long-time friend Francis Chérasse (Jean Carmet), known as Le Bombé. The two are described as the last surviving members of their breed, still living in a rural fashion while the rest of the world has modernized. They spend their days getting drunk and eating cabbage soup, while they spend their nights getting drunk and farting.
The Great Gonzo has always been identified as a "whatever". But after he begins having disturbing dreams of abandonment and rejection, he begins to realize just how alone he is in the world. One of his nightmares involves him being denied entry onto Noah's Ark by Noah (F. Murray Abraham). The next morning, Gonzo tells Kermit the Frog that he is getting tired of being called a "whatever." After an alien race appears to be trying to send him a message through bowls of cereal, Gonzo realizes that he may not be so alone after all and climbs to the rooftop to start watching the sky. Using a bolt of lightning, Gonzo communicates with a pair of cosmic fish, revealing to him that he is an alien from outer space.
Professor Ned Brainard's discovery of Flubber has not quite brought him or his college the riches he thought. The Pentagon has declared his discovery to be top secret and the IRS has slapped him with a huge tax bill, even if he has yet to receive a cent. He thinks he may have found the solution in the form of "Flubbergas," (the "son" of Flubber) which can change the weather. His wife Betsy becomes fed up with all the stress and starts separating from him, and the professor's old rival Shelby starts trying to woo her again. Brainard's experiments continue, by making it rain inside people's houses, as well as in Shelby's car too while he's driving, which causes him to get into an accident with a police car. It also helps Medfield College's football team to win a game, but it also has one unfortunate side effect: It shatters glass, which eventually places Brainard on the lam. At home, his wife Betsy is jealous of the attention lavished on him by an old high school girlfriend. On trial, Ned's future seems hopeless, until a farmer shows the court that his crops grew extra large because of Ned's experiment, which the farmer names "Dry Rain", and the professor is acquitted, and he and Betsy are reunited.
Benjamin Jahrvi (Fisher Stevens), now unemployed, is peddling sophisticated toy robots that he makes himself by hand on the street corners of New York City. One robot wanders away from his stand and by chance makes its way into the office of Sandy Banatoni (Cynthia Gibb), a scout for a major toy company. Sandy tracks Ben down and orders 1,000 of his toys. Overhearing this offer is con artist Fred Ritter (Michael McKean), who smooth-talks his way into becoming Ben's business partner in the deal and later acquires the funding Ben needs to get his assembly line started from a loan shark.
Upon discovering a UFO in American airspace, the National Guard sends fighter jets to investigate, and they fire on the craft when it doesn't respond. Belatedly activating a cloaking device too late, the spaceship crashes into the Atlantic ocean, near land. The aliens aboard, Beldar Clorhone and his life-mate Prymaat, survive and quickly adapt to our human way of life, despite standing out with their conical shaped heads. Beldar gets work as an appliance repairman, and when his grateful boss Otto discovers that Beldar has no documentation, he arranges for a false identity, which sends up a red flag that quickly alerts the INS. Meanwhile, after communicating with their world (Remulak) and discovering that a rescue vessel will not arrive for seven "Zurls" (many years), Prymaat informs Beldar that she is pregnant. They now need to completely adapt and safely blend in in order to raise their child among humans. Ambitious INS agent Gorman Seedling and his assistant Eli attempt to capture Beldar and Prymaat, but they are able to elude the two agents.
Doug Kinney (Michael Keaton) is a Los Angeles construction worker whose job is constantly getting in the way of his family. On one job to build a new wing of a scientific facility, Doug meets up with Dr. Leeds (Harris Yulin), a friendly scientist who has developed a successful method for cloning humans, and is introduced to Dr. Leeds' clone as proof. The scientist, who is sympathetic to Doug's troubles, allows Doug to make a clone of himself that can take over for him at work, while he tries to spend some quality time with his family. The clone, called "Two" (who calls himself Lance), has all of Doug's memories and knowledge, but is overly macho. Although the clone seems to be a dream come true, while taking his wife, Laura (Andie MacDowell), out to a restaurant for dinner, he finds that Two is on his own date. Doug realizes clones are not as great as they seem, and Doug begins to worry about his clone being revealed.
The film follows David Scott Freeman (Joey Cramer), a 12-year-old boy living in Florida in 1978. David has a strained relationship with his younger brother Jeff. On the night of July 4, at his mother's insistence, David walks through the woods to escort Jeff home from a friend's house. On the way, his dog alerts him to something down in a ravine. When David goes to investigate, he falls into the ravine and is knocked unconscious.
The film begins with graduate student Teri MacDonald (Helen Hunt) and her work training a chimpanzee named Virgil to use American Sign Language. When her research grant is not renewed, Virgil is taken away. Teri is told that Virgil will be sent to a zoo. Instead, he is taken to an Air Force base to be used in a top-secret research project involving platforms designed to simulate the operation of aircraft.
Pat Kramer of Tasty Meadows is an ordinary suburban housewife and mother of two children. Her husband Vance is an advertising executive. After exposure to an experimental perfume from her husband's company mixed with a multitude of household products and food additives she begins to shrink, gradually at first, then rapidly. A few weeks pass and Pat has shrunk to the height of her own children. Eventually she becomes a celebrity of sorts appearing on The Mike Douglas Show and captures the hearts of the American people. Soon she is less than a foot tall making her like a doll to her children and forcing her to move into a dollhouse.