A younger sister wishes to switch places with her popular older sister and the two bickering siblings awaken to find the wish has come true.

Academic researchers are chased by a nuclear-hot specimen of ancient Mayan blob.

Based on elements from the stories of Mark Twain, this feature-length Claymation fantasy follows the adventures of Tom Sawyer, Becky Thatcher and Huck Finn as they stowaway aboard the interplanetary balloon of Mark Twain. Twain, disgusted with the human race, is intent upon finding Halley's Comet and crashing into it, achieving his "destiny." It's up to Tom, Becky, and Huck to convince him that his judgment is wrong and that he still has much to offer humanity that might make a difference. Their efforts aren't just charitable; if they fail, they will share Twain's fate. Along the way, they use a magical time portal to get a detailed overview of the Twain philosophy, observing the "historical" events that inspired his works.

Albert Einstein helps a young man who's in love with Einstein's niece to catch her attention by pretending temporarily to be a great physicist.

Two astronomers go on a media tour to warn humankind of a planet-killing comet hurtling toward Earth. The response from a distracted world: Meh.

An orphaned dinosaur raised by lemurs joins an arduous trek to a sancturary after a meteorite shower destroys his family home.

As Usagi and her friends enjoy Christmas vacation, an unusual and fierce snowstorm hits town... The evil Snow Queen Kaguya has returned to claim Earth as her own. Crucial to Queen Kaguya's plan is a magical crystal from outer space, approaching Earth disguised as a comet. Once she gets hold of the crystal, she will have the power to suck away all life energy and cover the Earth in ice. Will Sailor Moon find the crystal before Queen Kaguya? Will her powers be enough to save the Earth from permanent winter? All hope lies with the Legendary Ultimate Scout Power!

A quaint Australian fishing village is overcome by meteorites that turn its residents into the ravenous undead, leaving a small group of those unharmed to find a way out.

After a comet wipes out most of life on Earth, two Valley Girls find themselves fighting against cannibal zombies and a sinister group of scientists.

Karen and Lex meet on a dating app, only to discover they're living fifteen years apart, connected by a comet. As they unravel the mystery of their unique situation, they work together to change the past and alter their fates.

Ash, May, Brock, and Max come upon the festival of the Wishing Star of Seven Nights. During their enjoyment, the legendary Pokemon--Jirachi, descends from the heavens and befriends Max. Jirachi, with the power to grant any wish, is sought after by many people wanting to claim its power. One man seeks to use its legendary power to revive an ancient Pokemon known as Groudon, unaware of the dangers hidden within Jirachi's powers

Moomintroll, Sniff and Little My set out to stop a comet approaching the Moominvalley. Along the way they meet Snufkin, the beautiful Snorkmaiden, Snork and Hemulen, who join them in their quest.