Cutting Room Floor

After successfully destroying the commercial towing vehicle Nostromo, Ripley casually undresses in preparation for hypersleep in its lifeboat. In the process of initializing the hypersleep sequence she is horrified to find the Alien a stowaway. Rushing to the fireman's pole she slides down to the main deck to don a space suit in the hopes opening the airlock and sucking the alien out into space.

Just for the record, most of this scene made it into the 1979 theatrical cut.