I got a nice desktop monitor as a gift and was streaming Alien in 1080P the other night.
I'm watching it in detail. "Rewinding" to look at character expressions and film set detail. Not bad for the 70's, as we all know.
So when they were trying to get Kane (John Hurt) back into the ship after the face hugger got him, Ripley says no for quarantine reasons and Ash is at the interior door and opens it anyways letting them in.
Ridley Scott shows a close up of Ash's profile for maybe a second before he opens the door. This dude is not human and Scott gave us a hint. It's a huge plot point later in the movie but on the front end he dropped a tiny clue in there. 45 years and one BlueRay later I pick up on it.
