Open the hatch.
3 seconds sound clip from the Alien (1979) movie soundboard.
You can hear this line at 00:35:40 in the Blu-ray version of the movie.
Quote context
[...]
- Something has attached itself to him. We have to get him to the infirmary right away.
- What kind of thing? I need a clear definition.
- Listen to me. If we break quarantine, we could all die.
- Look, would you open the goddamn hatch? We have to get him inside.
[...]