The 1970s are remembered by many as a decade where self-expression and identity took hold in popular culture.

But not everyone took that as a sign of peace.

On Halloween night in 1963, a six-year-old boy murdered his older sister without any purpose or logic.

Promotional still from Wes Craven’s The Hill’s Have Eyes (1977)

Image via Vanguard

This new depiction makes the titular invasion far wider, grittier, and ultimately more hopeless in scope.

The Carters are your average American family on a road trip to San Diego.

In a far-off future, the industrial ship Nostromo accepts a distress call from a seemingly abandoned spacecraft.

Michael Myers holding a knife in ‘Halloween’ (1978)

Image via Compass International Pictures

As Thorn talks with the church, it soon becomes apparent who Damiens father really is.

Carrieis the first of many film adaptations ofStephen Kings work, andits easily one of his best.

Its a classic revenge story of what happens when the quiet girl is pushed around one too many times.

Halloween 1978 Movie Poster

Despite sores covering her body and violent fits, no medical practitioner can explain whats wrong with her.

Based on the book byWilliam Peter Blatty,The Exorcisthas become infamous in every sense of the word.

In other words,it set the standard for what a modern horror film could and should be.

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Next:10 Best Horror Movies Based on Books, Ranked

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Matthew (Donald Sutherland) holding a tool in ‘Invasion of the Body Snatchers’

Image via United Artists

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The Hills Have Eyes

‘The Hills Have Eyes’ (1977)

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Brody-with-a-shark-behind-him-in-Jaws

Image via Universal Pictures

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The xenomorph coming out of the smoke in Alien.

Image via 20th Century Studios

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Damien in a graveyard in The Omen 1976

Image via 20th Century Studios

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Carrie - 1976 - poster

Image via United Artists

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Lord Summerisle prays in front of the eponymous Wicker Man in ‘The Wicker Man’ (1973)

Image via British Lion Films

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Gunnar Hansen as Leatherface wielding a chainsaw outside in Texas Chain saw Massacre

Image via New Line Cinema

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Linda Blair as Regan, floating above a bed, possessed, with her arms spread wide in The Exorcist

Image via Warner Bros.

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Horror