“What's it key off?” – Ripley, Alien ... Movie Quotes Database

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A scene from Alien 1979

Ripley

[On Ash's tracking devices]

What's it key off?

Ash

... Micro changes in air density.

Ripley

[Later, when trying to track the alien]

'Micro changes in air density', my ass.

In this scene

Ripley Sigourney Weaver More Ripley quotes →

Ash Ian Holm More Ash quotes →

More from Alien

Ripley When we throw the switches, how long before the ship blows? Parker Ten minutes. Ripley No bullshit? Parker We ain't outta here in ten minutes, we won't need no rocket to fly through space. Ripley Mother! I've turned the cooling unit back on. Mother! Mother The ship will automatically destruct in "T" minus five minutes. Ripley You... BITCH!
[smashes computer monitor with flamethrower] Lambert Oh, God! It's moving right towards you! Move! Get out of there!