As a kid, for a time, I had a tape with all of Alien up until the point where they cut through the face-hugger and the acid was burning through all the floors.

I think we had to leave or something when I was part way through taping it. I eventually replaced it with a full copy.

It paired well with my The Last Starfighter up until they were walking across a bridge when they got there and Explorers up until they all got to the ship and got separated.