Thornton Melon (Rodney Dangerfield) is concerned that his son Jason (Keith Gordon) is unsure whether to go to college, so the uneducated self-made millionaire encourages him by signing up as a student as well. As Jason tries to establish himself among his peers and make the diving team, Thornton falls for a pretty professor (Sally Kellerman) and gets others do his schoolwork for him. When the suspicious dean (Paxton Whitehead) finds out, Thornton needs to show he can get by on his own.
A scientifically miniaturized marine unexpectedly finds himself floating around the body of a hypochondriac and trying to outwit saboteurs who want the device that shrank him. Attempts by his colleagues to retrieve the little man – protected inside a tiny submersible – are hampered by the would-be thieves.
Young Ben Crandall (Ethan Hawke) spends his free time watching sci-fi films, playing video games and reading comic books. Surprisingly, his affinity for all things fantastical yields a real result — when he has a vivid dream about technology, his science-loving friend Wolfgang Muller (River Phoenix) manages to create a working spacecraft. Joined by their buddy Darren Woods (Jason Presson), the boys take off into outer space and encounter some very odd extraterrestrial life.
Harris K. Telemacher (Steve Martin) has the easiest job in the world: he’s a TV weatherman in Los Angeles, where the weather is so predictable he tapes his forecasts days in advance. Bored with his job, his life and his relationship with longtime girlfriend Trudi (Marilu Henner), Harris begins to receive secret messages from an electronic freeway sign near his home, which lead him to pursue romance with a British journalist (Victoria Tennant) and a vapid young model (Sarah Jessica Parker).
Douglas Quaid (Arnold Schwarzenegger) is a bored construction worker in the year 2084 who dreams of visiting the colonized Mars. He visits “Rekall,” a company that plants false memories into people’s brains, in order to experience the thrill of Mars without having to travel there. But something goes wrong during the procedure; Quaid discovers that his entire life is actually a false memory and that the people who implanted it in his head now want him dead.
Settling in for some time off in his suburban home, Ray Peterson’s (Tom Hanks) vacation becomes a horror when the Klopeks, a suspiciously odd family, move in down the block. Enlisting the aid of his paranoid buddy, Art (Rick Ducommun), and his militia-man neighbor, Rumsfield (Bruce Dern), Ray sends his son and wife (Carrie Fisher) away on a trip while he investigates the Klopeks. When a neighbor disappears, Ray and his cohorts risk their lives to save their cul-de-sac from the clutches of evil.