In the quiet mining town of Prosperity, Arizona, an accident involving a rabbit causes a barrel of toxic waste to land in a reservoir. An exotic spider farmer named Joshua (Tom Noonan) has been making regular visits to the site, where he collects crickets for his spiders. Although the spiders have ingested the toxins, he is oblivious since the arachnids seem unaffected. Joshua shows Mike (Scott Terra), a local boy, his collection, which include Jumping spiders, Tarantulas, Trapdoor spiders, and orb-weavers spiders, including a female orb-weaver named Consuela. After Mike leaves, Joshua is bitten by an escaped tarantula and accidentally knocks down the spider cages, causing him to be killed by the spiders. After devouring him, the spiders grow to even bigger proportions.
Owen Baker (Liam Aiken) is a 12-year-old who has been working as the neighborhood dog-walker so he can earn the privilege of getting a dog of his own. Owen's hard work pays off when his parents, Mr. and Mrs. Baker (Kevin Nealon and Molly Shannon), let Owen adopt a scruffy Border Terrier that he names Hubble (voice of Matthew Broderick).
In feudal Japan 1603 (Late Sengoku period) a young man is being chased by four samurai on horseback. As they go into the woods, a mysterious woman emerges from the underbrush and watches closely. However, the samurai eventually capture and take the youth, revealed to be a prince named Kenshin, with them.
Number 5 is part of a series of prototype U.S. military S.A.I.N.T. (Strategic Artificially Intelligent Nuclear Transport) robots built for the Cold War by NOVA Laboratories. The series' inventors, Newton Graham Crosby and Ben Jabituya, are more interested in peaceful applications including music and social aid. After a demonstration of the robots' capabilities, Number 5 is hit by a lightning-induced power surge, erasing its programming and giving it a sense of free will. Several incidents allow the robot to escape the facility accidentally, barely able to communicate and uncertain of its directive. In Astoria, Oregon, Stephanie Speck (who cares for animals and mistakes Number 5 for an extraterrestrial visitor) grants Number 5 access to books, television, and other stimuli, to satisfy his hunger for 'input'; whereupon Number 5 develops a whimsical and curious childlike personality. When Stephanie realizes Number 5 is a military invention, she contacts NOVA who send out a team to recover him, bringing one of the other robots along to help. When Number 5 accidentally crushes a grasshopper and gains an understanding of mortality, he concludes that if NOVA disassembles him he too will cease to be alive. Horrified, Number 5 steals Stephanie's van and flees; but the pair are cornered by NOVA, including Newton and Ben. Although Stephanie attempts to reveal his newly discovered sentience, Number 5 is deactivated and captured. Being taken on the way to NOVA, he manages to turn himself back on and escapes despite a tracker that had been placed on him. Returning to Stephanie for protection, Number 5's unusual actions catch the attention of his creators, but NOVA's CEO Dr. Howard Marner turns a deaf ear to their wild hypothesis.
In 2688, humanity exists as a utopian society due to the inspiration of the music and wisdom of the Two Great Ones: Bill S. Preston, Esq. (Alex Winter) and Ted "Theodore" Logan (Keanu Reeves). Rufus (George Carlin) is tasked by the leaders to travel back to San Dimas, California, in 1988 using a time machine disguised as a telephone booth to ensure that Bill and Ted, who are dim-witted metalhead high school students, get a good grade in their final history oral report and allow them to pass the class. Should they fail, Ted's father, Police Captain John Logan (Hal Langdon), plans to ship Ted to a military academy in Alaska, ending Bill and Ted's fledgling band, the "Wyld Stallyns", thus altering the future.
Nine-year-old Milo (Seth Green, voice-over by Seth Dusky) is just beginning summer vacation, and his father (Tom Everett Scott) is leaving for a business trip. While Milo is wanting his summer to be a fun one, his mother (Joan Cusack) assigns him chores and tasks like taking out the trash. At dinnertime, Milo is given broccoli. His mother has a "no broccoli, no TV" rule which Milo cleverly evades. When Milo feeds his broccoli to his cat, his mom grounds him and sends him to bed early. After a heated argument with his mother, Milo wishes that he never had a mom. Later that night, his wish comes true when his mother is abducted by Martians who plan to steal her "momness" to rear their own young.
Shermer, Illinois, is a fictitious suburb of Chicago. There, nerdy social outcasts Gary Wallace (Anthony Michael Hall) and Wyatt Donnelly (Ilan Mitchell-Smith) are publicly humiliated by Ian (Robert Downey, Jr.) and Max (Robert Rusler) after they are seen swooning over two girls who happen to be their girlfriends. Dejected and disappointed at their direction in life and wanting more, Gary convinces the uptight Wyatt that they need a boost of popularity in order to get their crushes, Hilly (Judie Aronson) and Deb (Suzanne Snyder), away from Ian and Max. Alone for the weekend with Wyatt's parents gone, Gary is inspired by the 1931 classic Frankenstein to create a virtual girl using Wyatt's computer; infusing her with everything they can conceive to make the perfect dream girl. After hooking electrodes to a doll and hacking into a government computer system for more power, a power surge creates Lisa, a beautiful and intelligent woman with seemingly endless powers. Promptly, she conjures up a Cadillac convertible to take the boys out to a bar, using her powers to manipulate people into believing Gary and Wyatt are of age. The boys come up with the name Lisa (Kelly Le Brock), based upon a failed romantic experience of Gary's that ended with Lisa kicking him in the testicles.
In September 1963, Seymour Krelborn (Rick Moranis) and his colleague, Audrey (Ellen Greene), work at Mushnik's Flower Shop, lamenting they cannot escape the slums of New York City, living in a run-down, beat up neighborhood referred to as "Skid Row." Struggling from a lack of customers, Mr. Mushnik (Vincent Gardenia) prompts to close the store, only for Audrey to suggest displaying an unusual plant Seymour owns. Immediately attracting a customer, Seymour explains he bought the plant, which he dubbed "Audrey II", from a Chinese flower shop during a solar eclipse. Attracting business to Mushnik's shop, the plant soon starts dying, worrying Seymour. Accidentally pricking his finger, he then discovers Audrey II needs human blood to thrive.
The NSA-funded QT (Quantum Tech) Corporation has slated a project to develop Hypertime, a technology which allows the user's molecules to speed up to the point where the world appears to be standing still. After realizing that such technology, contained within a wristwatch frame, could also be used against the USA, the NSA orders the project stopped. However, the research is farther along than the NSA expected and QT's leader Henry Gates plans on using the technology to usurp the leader of the NSA and dominate the world. He uses the prototype to stretch the weekend in order to give the brilliant lead scientist Earl Dopler time to fix the remaining glitch in the technology after his henchmen Richard and Jay prevent Earl's incognito departure at the airport. However, the disadvantage of Earl being in Hypertime for too long was him aging rapidly in real time, as his molecular age continued at the same rate despite time slowing down.
Planet Spaceball, led by the incompetent President Skroob, has wasted all of its air. Skroob schemes to steal air from the planet Druidia by kidnapping Princess Vespa, the daughter of King Roland on the day of her pre-arranged wedding to the narcoleptic Prince Valium. Skroob sends the villainous Dark Helmet to complete this task with Spaceball One, an impossibly huge ship helmed by Colonel Sandurz. Before they can arrive, Vespa herself abandons her marriage and flees the planet in her personal Mercedes spaceship along with her Droid of Honor, Dot Matrix.
The film opens in the utopian future that results from the music of Bill (Alex Winter) and Ted (Keanu Reeves). Chuck De Nomolos (Joss Ackland), who detests this society, steals one of the time-traveling phone booths and sends two robots modeled after Bill and Ted to the late 20th century, with the intent to prevent Bill and Ted from winning the San Dimas Battle of the Bands. Rufus (George Carlin) attempts to stop De Nomolos but becomes lost in the circuits of time.
Twenty-seven-year-old Howard the Duck (Chip Zien) lives on Duckworld, a planet similar to Earth but inhabited by anthropomorphic ducks and orbited by twin moons. As he is reading the latest issue of Playduck magazine, his armchair begins to quake violently and propels him out of his apartment building and into outer space; Howard eventually lands on Earth, in Cleveland, Ohio. Upon arriving, Howard encounters a woman being attacked by thugs. He defeats them using a unique style of martial arts. After the thugs flee, the woman introduces herself as Beverly Switzler (Lea Thompson), and decides to take Howard to her apartment and let him spend the night. The following day, Beverly takes Howard to Phil Blumbertt (Tim Robbins), a scientist who Beverly hopes can help Howard return to his world. After Phil is revealed to be only a janitor, Howard resigns himself to life on Earth and rejects Beverly's aid. He soon applies for a job as a janitor at a local romance spa. Because of unfair treatment by his boss, Howard resigns and rejoins Beverly, who plays in a band called Cherry Bomb. At the club at which Cherry Bomb is performing, Howard comes across their manager (Tommy Swerdlow), and confronts him when he insults the band. A fight breaks out, in which Howard is victorious.
The film opens on Mars, showing the last moments of a Mars rover's mission. As the rover prepares to sample a Martian rock, the rover loses power and becomes inoperable. The scene pans up from the dead rover to show a huge, undiscovered Martian city just beyond the rock the rover was about to sample. A spaceship is seen quickly rocketing from the city and accelerating into space.
The film centres on Riley Jones (Shanley Caswell), a suicidal social outcast at Grizzly Lake High School who harbours an unrequited love for ironically named hipster, and friend since childhood, Clapton Davis (Josh Hutcherson). Clapton is, in turn, head over heels for Ione Foster (Spencer Locke), a beautiful self-absorbed cheerleader who was once best friends with Riley. Their friendship collapsed after Ione pursued Clapton, despite knowing of Riley's feelings for him. All three are waiting out their final year of high school, but it's anyone's guess if they'll ever see graduation, as a serial killer known as Cinderhella is on the loose and preying on Grizzly Lake's student body. The principal (Dane Cook) is certain Cinderhella is a disgruntled student at the school and figures he can keep the prom from turning into a bloodbath by putting the likely suspects in all-day (10:00 AM-10:00 PM) detention on the day of the big dance.
In the year 10,001 B.C., a caveman runs away from a predator through a plain and immediately gets into a fight with Wolf (Ike Barinholtz). After defeating him, the caveman then encounters the predator: a saber-toothed, gasoline-drinking Amy Winehouse (Nicole Parker), who after checking her Facebook account, informs him that the world will end on August 29, 2008 (the film's release date) revealing that their fate lies in a crystal skull. The film flash-forwards to the present, treating the first scene as a dream sequence of Will (Matt Lanter). He then finds out that his girlfriend Amy (Vanessa Minnillo) is having an affair with Flavor Flav (Abe Spigner), and she breaks up with Will because he is not admitting his true feelings for her.