Alien: Romulus took inspiration from this one little thing in Alien: Isolation

looks like a terrifying love letter to the primary film in the series, released in the late Seventies. But that classic sci-fi horror is not the only thing it draws from, so once you watch the film later this week, keep a watch out for the emergency calls that first appeared a long time later in . And then be prepared to be afraid.

which hits theaters nationwide this week, draws much of its inspiration from Ridley Scott’s original film. It ignores many a wider universe that was expanded upon in later movies and mainly focuses on a small crew as they battle a deadly, hard-to-kill alien that pursues them. However, as revealed in a brand new interview, the director of the upcoming sci-fi horror also revealed that the fan-favorite video game released in 2014, also inspired , perhaps resulting in its creation.

In an interview for the podcastDirector Fede Alvarez explained that the horror game convinced him that the Xenomorph might be scary again after quite a few sequels and guest appearances in other games, movies, and comics.

“ that was something that made me realize that this could be really scary and done well (today),” Alvarez said, according to .

“I played it a number of years after it got here out. It was purported to come out. Or I used to be waiting for it to come back out and I used to be playing it. So at that time I used to be like, ‘Man, if I could do anything, I might wish to do it and scare the audience again with that creature and people environments.’ I played it and realized how scary it might be in case you return to that tone.”

Save stations appear recurrently in

But that didn’t just inspire Alvarez to create a new, scary movie. The survival horror game is also directly referenced in the movie in a neat detail involving save stations, which appear as emergency phones scattered throughout the game. Players must stop what they’re doing, walk up to one, and activate it to save their game. As such, they’re important devices that tend to appear in areas where you can be attacked or killed. And Alvarez did something similar in the movie.

“The film is constructed in such a way that every time something bad is about to happen, the audience will see (an emergency call),” explains the director and co-writer.

“In the sport, each time you knew there was a phone, you were like, ‘Man, I’m about to get into some bad scene.’ It’s the identical here. You’ll see them strategically placed throughout the movie. When you see a phone, it’s like, ‘Get ready for impact.'”

hits theaters August 16. I’ll be watching for emergency calls and getting ready to scream.

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