There are a few references to the original movie.
1. Scattered around the Torrens and Sevastopol station are drinking birds. The first one found is in the hypersleep chamber.
2. During Mission 2 in the baggage claim area, players can hear the faint sound of meowing before it abruptly stops as they approach the primary airlock. This is a possible reference to the cat Jonesy from the first movie.
3. Another reference is found when players discover the deceased Alistair Smythe who has a rolled-up magazine shoved down his throat. Spoiler:This is how Ash tried to kill Ellen Ripley.