There may not be a better one-two punch than 1979’s Alien and 1986’s Aliens. Helmed by legends Ridley Scott and James Cameron, they launched a franchise before that was even really a thing and captivated millions by melding sci-fi with horror and action.

They’re also quite spooky, especially the first one. To celebrate Halloween, also known as Horror Month, we’re talking about (and ranking) these two stone-cold classics.

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