Not every superhero film has a sequel or is connected to a cinematic universe.

Some of these movies were simply meant to be one-and-done, while others had canceled sequels.

BeforeThe Boysled the charge for superhero satire, 1999’sMystery Mendid it very well.

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Image via Annamaria Ward

It also happens to be one of thehighest-grossing non-Marvel or DC superherofilms.

7’Eternals' (2021)

Directed by Chloe Zhao

Eternalsis a bitdivisive among audiences.

For those growing up in the early 2000s,Sky Highwas a huge deal.

Vigilante the Crimson Bolt wields a shotgun while dressed in a red superhero costume in the streets at night.

Image via IFC Midnight

It’sa ton of fun and has seemingly endless charmand heart that can only be found in a Disney film.

It’s avery underrated superhero flickand a crucial part of many millennials' youth.

Upon release in 2012,Chroniclereceived mass praise and success from both audiences and critics across the board.

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Paired with the relatability found in the teenage protagonists, this approach makes for a super entertaining film.

A sequel was apparently plannedbut never came to anything.

It seems as if it’s for the best, though, asChronicleworks perfectly as it is.

Furious holding his fists out and screaming in a tunnel in Mystery Men.

Image via Universal Pictures

Sadly,not many saw this superhero moviedue to how horrendousThe Flashwas.

Those who did see the movie actually adored it, giving it a second life on digital.

There are no official plans for a sequel.

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However,Natalie Portmanhas publicly statedshe would definitely be interested in returning to her role in the series.

No matter what,the project stands on its own with flying colors.

At the time,Big Hero 6was the best example ofaperfect family-friendly superhero moviesinceThe Incredibles.

John Hancock standing in a crowded street in Hancock

Image via Sony Pictures Releasing

Pretty much everyone adored it and, to this day, is begging for a theatrical follow-up.

While it may have received a small streaming series,Big Hero 6remains a standalone.

NEXT:The 10 Best Shows Turning 30 in 2025

Hancock Movie Poster

Ma Dong-seok, Angelina Jolie, Richard Madden, Salma Hayek, Gemma Chan, and Lia McHugh in ‘Eternals’

Image via Marvel Studios

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Hulk roaring in rage in ‘The Incredible Hulk’.

Image via Universal Pictures

A group of teenagers in class in Sky High (2005)  (1)

Image via Buena Vista Pictures Distribution

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Alex Russell, Michael B. Jordan, Dane DeHaan in Chronicle

Image via 20th Century Studios

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Jaime Reyes holding the scarab before it implants itself in him in Blue Beetle

Image via Warner Bros.

Blue Beetle Movie Poster

A close-up of V in V for Vendetta

Image via Warner Bros. Pictures

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Hiro hugging Baymax in Big Hero 6

Image via Walt Disney Animation Studios

Big Hero 6 Movie Poster

Blue Beetle

Chronicle