CGI, or Computer-Generated Imagery, is one of the most commonly used tools in the modern movie industry.

However, not every usage of CGI is nearly as impressive or useful as it should be.

Here are the 10 sci-fi films with the worst CGI.

Lawnmower Man

Image via New Line Cinema

Deep Blue Seahas very questionable CGI for its sharks.

The Thingis a science fiction horror film first released in 2011.

It serves as a prequel to the 1982 film of the same name.

Samuel L. Jackson in Deep Blue Sea

The Thing has particularly bad CGI effects for its titular creature.

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8’Spawn' (1997)

Directed by Mark A.Z.

Dippe

Spawnis a science fiction superherofilm first released in 1997.

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It is based on the Image Comics character of the same name created byThe Amazing Spider-ManartistTodd McFarlane.

It is based on the 1975 short story of the same name created byillustrious horror authorStephen King.

The Lawnmower Manhas extremely outdated CGI throughout.

The Thing (2011) Prequel

Image Via Universal Pictures

This is best seen in the virtual reality scenes.

Octopususes very cheap-looking CGI for its titular monster throughout.

It serves as a remake of the 1967 filmYongary, Monster of the Deep.

The Thing 2011 Poster

Yonggaryhas exceptionally poor CGI for its titular monster.

The action inUltravioletis drastically hindered by the quality of its CGI throughout.

Atlantic Rimhas extremely lazy CGI for its monsters and robots throughout.

Spawn looking menacing in the 1997 movie Spawn

Image via New Line Cinema

It is an adaptation of the 1982 book of the same name byL.

Ron Hubbard, best known for founding Scientology.

Oddly enough for a big-budget sci-fi film,Battlefield Earthdoes not use very much CGI.

Spawn Movie Poster 1997

When it does, however, the CGI is terrible.

The Amazing Bulkhas by farsome of the worstCGI of all time.

NEXT:10 Movies With the Absolute Worst CGI, Ranked

Jobe’s virtual form, pointing and looking angry in The Lawnmower Man

Image via New Line Cinema

the lawnmower man poster

octopus 2000

Image via USA Network

Yonggary - 1999

Image via Media Film International

ultraviolet 20060

Image via SPE

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Cast Placeholder Image

A still from the Pacific-Rim ripoff film, Atlantic-Rim

Image via The Asylum

Even Forest Whitaker and John Travolta look down in ‘Battlefield Earth’

Image via Warner Bros. Pictures

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A large, purple man known as The Amazing Bulk standing in the middle of a city alleyway in ‘The Amazing Bulk’ (2012)

Image via Wild Eye Releasing

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Movie

Spawn