20 best movies like The Greatest American Hero (1981)

Jackson Slate, famous treasure hunter, is out to find the legendary Lost Gold Of Cortez in the open waters off a secluded island in the Caribbean Sea. Using dynamite to blast his way through centuries of silt, new chasms are created reaching miles below the ancient ocean floor. From here, an ancient evil is released, that quickly, savagely, and without warning, destroys Jackson s boat and kills his crew. The sole survivor of the carnage, Jackson teams up with marine biologist, Sarah, to venture back to the site and investigate the horrific events. They extract an egg from the darkest depths of the ocean and take it back to the lab to investigate. But when it hatches, they realise they have awaken a deadly prehistoric monster, the P-Rex, which will stop at nothing until the entire island is destroyed...

An embarrassing video of Anthony surfaces online right before his fifth high school reunion. The Smosh dudes then race to pull down the clip before it blows Anthony's chances of reconnecting with his teen crush Anna.

After a Soviet space station crashes into a New York City subway tunnel, a species of venomous spiders is discovered, and soon they mutate to gigantic proportions and wreak havoc on the city.

Former Gotham City District Attorney Harvey Dent, one side of his face scarred by acid, goes on a crime spree based on the number '2'. All of his actions are decided by the flip of a defaced, two-headed silver dollar.

Scientists discover a giant creature under the Earth that is wrapped around the entire planet. When the creature wakes all grumpy, it causes worldwide destruction.

Many years ago, hundreds of locals and tourists were massacred by giant man-eating sharks in the infamous 1916 Jersey Shore attacks. But that's just a legend... or is it? It's a holiday weekend on the Jersey Shore and, unbeknownst to anyone, underwater drills have attracted dozens of albino bull sharks to the pier. When a man goes missing, TC (The Complication), Nookie and friends fear the worst and plead with the police chief to close down the beach. It isn't until a famous singer is eaten alive during a performance on the pier that the shark hunt begins. Now, the Preppies must work together with the Guidos in order to save the Jersey Shore and its inhabitants from another vicious slaughter.

When a mad scientist mixes the genes of a killer whale and a wolf, it creates the Whalewolf, and it's up to Sharktopus to stop it.

Based on the hit web series of the same name, the science fiction/adventure/comedy, Angry Video Game Nerd: The Movie, follows a disgruntled gamer who must overcome his fear of the worst video game of all time in order to save his fans. Hilarity ensues as a simple road trip becomes an extravagant pursuit of the unexpected.

The film opens with a baby dinoshark swimming away from a broken chunk of Arctic glacier that calved due to global warming. Three years later, the dinoshark is a ferocious predatory adult and kills tourists and locals offshore from Puerto Vallarta, Mexico. The protagonist, Trace, is first to notice the Dinoshark and witnesses his friend get eaten, but has trouble convincing people that a creature of such antiquity is still alive and eating people.

An offshore drilling accident triggers the release of a giant prehistoric shark. When marine biologist Kat Carmichael arrives, she runs up against corporate front man Roger Wade, who plots with Stewart to disrupt her investigation. With the help of Skipper Chuck and disc jockey Dynamite Stevens, Kat tries to find a way to defeat the monster which has evolved to a state where it can walk on dry land and fly...it's the SUPER SHARK!

When an American oil company sets up an experimental drilling plant out in the vast deserts of Mongolia, they awaken a nest. The deadly creatures begin to breed and spread, devouring everyone in their path. The only person who can stop them is treasure hunter and adventure seeker who spent his life searching for a legendary tomb, fabled to be protected by the Death Worms. He knows he must do what he can to kill the creatures, but stopping these monsters may mean destroying his life's work forever!

Wisecracking mercenary Deadpool battles the evil and powerful Cable and other bad guys to save a boy's life.

A psychedelic rant about a gambling Elvis impersonator and his troubles with the Vegas Mafia, featuring a hapless crew of broken down Elvis impersonators who find themselves in competition with an Elvis who's so good, everybody starts to wonder. Could it really be true that the CIA and aliens from Alpha Centauri have brought Elvis back to Vegas?

With much of America lying in ruins, the rest of the world braces for a global sharknado, Fin and his family must travel around the world to stop them.

While returning from a military expedition a helicopter crash lands a commando unit in a dense, remote tropical jungle – a lost world populated by dinosaurs. Now they must find a way out of this isolated valley before becoming prey for prehistoric predators.

A group of researchers in Antarctica are abducted by a platoon of masked soldiers and dragged into a hidden continent in the center of the Earth. There, they discover that surviving Nazi soldiers are plotting an invasion of Earth to revive the Third Reich.

Just because a journey leads you somewhere you didn't expect, doesn't mean you ended up in the wrong place.

When a giant alien spider escapes from a military lab and rampages across the city of Los Angeles, it is up to one clever exterminator and his security guard sidekick to kill the creature before the entire city is destroyed.

Based on actual creatures that for years have tormented our armed forces in the Middle East, these creatures have now invaded the southwestern deserts of the United States. The Camel Spiders now freely hunt for prey, unafraid of any predator - including man. No place is safe no one is beyond their paralyzing sting. In the end, a small band of hearty fighters are forced to make one last stand against the creatures.

Stranded at a summer camp when aliens attack the planet, four teens with nothing in common embark on a perilous mission to save the world.

Ivan is a 400-pound silverback gorilla who shares a communal habitat in a suburban shopping mall with Stella the elephant, Bob the dog, and various other animals. He has few memories of the jungle where he was captured, but when a baby elephant named Ruby arrives, it touches something deep within him. Ruby is recently separated from her family in the wild, which causes him to question his life, where he comes from and where he ultimately wants to be.

A group of oddball high school students find themselves trapped in detention with their classmates having turned into a horde of Zombies.

Six children genetically cross-bred with avian DNA, complete with wings, take flight around the country to discover their origins.

Open on gorgeous swamplands of the Atchafalaya Basin in the summer. Lots of beautiful teens are at the beach the weekend before Gator Fest. That night an animal smuggling deal goes wrong and a large sea creature escapes into a swampy backwoods river. At the McDaniel's "Gator Shack" restaurant, a local, Jackson is drunk, and gets mangled to bits. The town sheriff blames the carnage on the McDaniel's "escaped" pack of gators and tries hauling them off to jail. Rachel McDaniel, head of the family, claims to have seen the fin of a shark! Rachel and her family, along with the help of a mysterious stranger, Charlie, take on the Swampshark and the law to clear their names, save Rachel's kid sister Krystal and prevent the unwitting folks at the upcoming Gator Fest from being torn to shreds by a beast the likes of which no one has ever seen!

A fanatical animal rights activist releases giant pythons into the Everglades, believing the wild animals should be set free. When they start decimating the native animal population, an over-zealous park ranger feeds experimental steroids to wild alligators so they can fight back. The giant pythons and gargantuan alligators go on a killing spree, and it is now left up to the two feuding women to put aside their differences to put a stop to the creatures and the destruction.

When a fracking mishap accidentally rips apart the earth’s crust, the resulting hole opens up a gaping underground water way to a vast and mysterious ocean somewhere deep below. Instantly, giant prehistoric sharks begin wending their way upward toward a murky bog in the heart of the Arkansas Bayou. Unfortunately, for a group of female prisoners on a work detail in the swamp, the deadly sharks attack without warning – pinning a hapless group of intended victims in a small deserted cabin in the heart of the wetlands. Death may be the only means of escape!

After Air Force One goes down during a storm over the Bermuda Triangle, the United States Navy is dispatched to find the escape pod holding the President. A giant monster beneath the ocean awakens and attacks the fleet.

A tropical storm floods Soggy Meadows trailer park and forces a hungry shark upriver.

Giant albino spiders break free from the depths of Earth in New Orleans, making everyone’s worst nightmare a reality.

A recently slain cop joins a team of undead police officers working for the Rest in Peace Department and tries to find the man who murdered him. Based on the comic by Peter M. Lenkov.

When a top-secret laboratory is unexpectedly breached, thousands of rampaging raptors are unleashed on Los Angeles! A black-ops unit is mobilized to contain the creatures before they cause city-wide chaos. Simultaneously, a truckload of raptors is rerouted to a nearby prison. Upon their escape, these ferocious flesh-eaters are beyond containment. This is Jurassic judgment night for smoking hot sorority girls, sinister scientists, muscle-bound military and doomed death-row inmates! It's about to get bloody in Jurassic City!

Lovely and resourceful Daria and Tisa escape a space gulag only to crash land on a nearby world where a guy in tight pants named Zed is playing The Most Dangerous Game. Zed turns the girls and another guest loose in his jungle preserve to serve as the prey in a mad hunt. Armed only with knives and their wits, the girls must battle their way across the jungle to a hidden arms cache before Zed catches and kills them.

A respectful nod to classic kids-in-peril adventure films that finds a group of reluctant kids stranded overnight in an abandoned jail. Their chaperon is missing, their cellphone service is non existent, and their patience with each other is running thin. Oh, and a big, hairy creature is trying to eat them. Hey... it's tough being a kid in a monster movie.

Seven disgusting kids but nevertheless of interesting personality are being made of the green mud coming out of garbage can. Once alive their master gives them rules to obey although they think that life is funnier without following stupid regulations like no television or no candy. Naturally this will cause some conflicts.