As director of Alien: Romulus , Fede Álvarez had one mission: to make his film feel as close to Ridley Scott’s Alien as possible. Alien: Romulus takes place between the events of Alien and Aliens , so it was important to Álvarez to make the film feel like it belonged “in that universe.”
'Alien: Romulus' goes back to basics | AP interview with director Fede Álvarez, Cailee Spaeny
In an interview with SFX magazine, Álvarez explained how his team juxtaposed footage of Romulus with Alien to match the lighting and color.
"We have a scan of the original 35mm print of Alien and we put it next to ours on the screen," Álvarez said. "Of course, that wouldn't do anything if we didn't do our job on the day."
For the sets, Álvarez and production designer Naaman Marshall were inspired by artist Ron Cobb's work on Alien.