Douglas 'Dougie' Whooly is a nine year old boy obsessed with a video game, in which he plays Satan's little helper. His sister Jenna, who is portrayed as a pretentious actor who often speaks in a faux British accent, comes home from college for Halloween and things turn sour when Dougie finds out she brought her boyfriend, Alex, with her.
Dr. Edward Pretorius (Ted Sorel) is a scientist who has developed the Resonator, a machine which allows whoever is within range to see beyond normal perceptible reality. His assistant, Dr. Crawford Tillinghast (Jeffrey Combs), activates the machine and soon sees strange creatures in the air. When he is bitten by one of them, he urges Pretorius to turn the machine off. However, the crazed Pretorius refuses. Events transpire to the point where Crawford panics, fleeing outside. When the police arrive, they find Pretorius decapitated. Crawford is subsequently arrested and accused of murder.
After a snowboarder inadvertently starts a major avalanche, the moving snowfield uncovers and wakes a prehistoric "snow shark" which had been trapped beneath. The shark develops an appetite for human flesh and the staff at the Twin Pines Ski Resort begins getting reports of missing people and strange finned creatures moving under the snow. Fearing financial loss on what is their busiest event day of the year, the Bikini Snow Day, the Twin Pines management tries to hide news of the missing skiers and sightings of strange creatures. Disaster strikes as the bikini-clad snow bunnies one-by-one become meals for the shark. The avalanche has cut off the roads trapping all within the Twin Pines Valley. The local sheriff allies with snowboarders to track down the monster.
Mosquitoes spread a zombie plague, and humanity is devastated. Denied shelter with a heavily armed group of survivors, Keith and Shelley attempt to clear out a marina and use it to escape to a better location. Amid attacks by nocturnal zombies, the previous group begin to raid them for supplies.
Duncan's (Ken Marino) life is a real pain in the ass. Tormented by a manipulative, crooked boss (Patrick Warburton), a nagging mother (Mary Kay Place), a deadbeat new age dad (Stephen Root), and a sweet, yet pressuring, wife (Gillian Jacobs), his mounting stress starts to trigger an insufferable gastrointestinal reaction.
The Astro Investigation and Defence Service (AIDS) sends Derek, Frank, Ozzy, and Barry to investigate the disappearance of everyone in the town of Kaihoro, New Zealand. They find the town has been overrun by space aliens disguised as humans in blue shirts. Barry kills one of the aliens and is attacked by others. After Derek notifies Frank and Ozzy, he begins torturing Robert, an alien they caught earlier. Robert's screaming attracts a number of aliens in the area. Derek kills the would-be rescuers, but he is attacked by Robert and falls over a cliff, to his presumed death.
Albert (Jon Wachter) works the night shift as a hot-dog vendor on the Lower East Side, where he meets photographer Ivan (Theodore Bouloukos) after having a confrontation with two drunk patrons. Ivan is fascinated by the slow-witted Albert and decides to give him a job working with him at his studio, where he takes fetish photos. Albert is reluctant to participate in Ivan's photos but shows interest in the photography job and lessons that Ivan offers. When Ivan decides to go to a fashion shoot in Milan, he accidentally leaves the studio's keys with Albert- who uses this as an opportunity to lure unsuspecting women to their deaths by enticing them with promises of a modeling shoot.
Four actors, Matt (Ross Partridge), Catherine (Elise Muller), Michelle (Greta Gerwig), and Chad [Steve Zissis) go to a cabin in the woods to write, direct, and act in a film that will jump-start their careers. Their idea is a horror film about a man with a paper bag over his head, but what happens when that man mysteriously shows up? The actors suddenly find themselves in a dangerous situation where their lives are put at risk as they try to escape the mysterious bag-head.
The film opens in 1975 at a place called Headstone Manor, which is being used as a "businessman's weekend retreat and girls' summer camp". A few minutes into the film, a group of satanic monks enter the house and kill 18 of its occupants.
It's every high school baseball team's dream to go to the legendary Koshien Stadium Tournament. For the first time in years, Seido High School has a chance—star player Gorrila Matsui has finally given the team an opportunity to succeed. Most delighted at this prospect is Principal Kocho. His hopes are dashed, however, when the Head teacher reveals to him that the first game will be played against the infamous Gedo High School.
The term "Beasties" is never used in the film, and is clearly designed to invoke Gremlins (which the box cites along with Back to the Future as influences), although the creatures are not the main focus of the film.
Barbara and Adam Maitland decide to spend their vacation decorating their idyllic Connecticut country home. As the two are driving home from a trip to town, Barbara swerves to avoid a dog and the car plunges into a river. After they return home, she and Adam notice that they now lack reflections and they discover a Handbook for the Recently Deceased.
On their way to perform in Guam for the troops, nightclub performers Duke Mitchell and Sammy Petrillo find themselves stranded on a seemingly treacherous island, known by the natives as "Kola Kola". The natives are quite friendly, especially Nona, the tribal chief's daughter, who tries to help the two get off the island. Though Paradise has been found, for the time being, the duo soon discovers that a mad scientist named Dr. Zabor (Bela Lugosi), lives on the other side of the island. Seeing a chance to get help, the two visit the strange doctor. Tension mounts as Duke falls in love with Nona. Seeing Duke as a threat, a jealous Dr. Zabor plans to literally make a monkey out of Duke, for he too loves Nona. Sammy tries to help his pal, with unexpected results.