Cailee Spaeny mentioned that filming “Alien: Romulus” was emotionally challenging due to characters being killed off regularly, given the shoot was in chronological order. Directed by Fede Alvarez and set between the original “Alien” films, this standalone movie arriving on August 16, shows young scavengers encountering hostile xenomorphs in a derelict space station. It’s projected to open with $35-$50 million.