Throughout her career, Kristen Stewart has had to hold her own against an array of costars: vampires; a Huntsman;Â Juliette Binoche. But in her new film, Personal Shopper, she does her best acting yetâand her scene partner is an iPhone. âThat was Kristenâs joke,â says director Olivier Assayas. âShe said, âYouâre aware my costars on this film are my thumbs.ââ
Stewart plays Maureen, a young woman convinced her recently deceased brother is trying to communicate with her. (Sheâs not just a personal shopperâsheâs also a medium.) The first time she thinks sheâs hears from him, itâs in the form of a text: âI know you,â the message from an unknown number says. âAnd you know me.â What transpires is a thread that propels the filmâs Hitchcockian second half, during which Maureen goes from shake-sobbing with shock to flirting with the messagesâ mysterious sender to seeing the texts as a sign of real danger.
The whole thing is surrealânot because it doesnât seem possible, but because it does. More than any other movie before it, Personal Shopper shows the anxiety we all feel around texting, whether itâs with our significant other or a total stranger. When Maureen exhibits jittery dread over receiving a new message, or bites her nails as those little âtypingâ bubbles flash, sheâs acting out something familiar to everyone whoâs stared intently at their device.
If you combine the potency of social contact with the ambiguity that you get over text, itâs a really potent way to influence how somebody else is feeling, and what theyâre thinking. psychologist Lisa Feldman Barrett
Itâs also familiar to researchers who study the psychological effects of technology. It doesnât really have a name, but texting has a very powerful effect on the brain. âWhen itâs uncertain whether someone likes you, dislikes you, or means you harm, your brain just canât help but treat it like something important,â says Northeastern University psychologist Lisa Feldman Barrett, author of How Emotions Are Made. âIf you combine the potency of social contact with the ambiguity that you get over text, itâs a really potent way to influence how somebody else is feeling, and what theyâre thinking.â So when Stewartâs Maureen assumes an anonymous number is her deceased brother, it doesnât feel ridiculousâit feels downright haunting.
That mental allure exists because the brain will always strive to fill in what it canât know. Itâs natural to think someone is conveying something implicit when they donât respond to a text, whether that something is âIâm on my way to your house,â âIâm playing hard to get,â or even just  âleave me alone.â Most of those imagined reponses have no basis in fact, but your brain creates them anyway, just to soothe your psyche until the truth emerges.
Sometimes that uncertainty leads to panic about why someone hasnât texted back. Other times it leads to the presumption that a mysterious stranger is flirting. âWhen you donât see the person youâre communicating with, it kind of fires up your imagination,â Assayas says. âItâs not that youâre connecting with an actual person, itâs more about projecting your fantasies onto another person who kind of agrees to be on the receiving end of them.â
Not everyone agrees on whether Assayas was able to bring that entirely to screenâhis movie got both cheers and jeers at Cannes. (Vanity Fairâs Richard Lawson did, however, write that âitâs one of the few times Iâve seen modern technology actually be scary instead of goofy in a movie.â He is correct.) But it does tap something far more realâpsychologically and otherwiseâthan a lot of other movies that have tried to use technology to trigger our emotions. The âtongue phoneâ in Nightmare on Elm Street, the haunted VHS tape of The Ring, the call that came from inside the house in Scream: they were all scary, but none were as plausible as watching Stewart get a text that read âI have spares of your keysâ from someone she couldnât pick out of a lineup.
Personal Shopper, out today, also keeps it simple by focusing on just one side of the text exchange. Unlike shows like House of Cards or Pretty Little Liars that show texting just to depict dialogue, Assayasâ movie shows texting as it is: a semi-solo act that takes place over the course of days or weeks. IRL, someone texts, then goes about their day until they hear back, but in films and TV, texting is shown as something that takes place all in one scene. Assayas shows it how it really happensâinterjected into daily life and influenced by events and emotions that come about while itâs happening.
Understanding the psychology of modern communication can lead to comedy, too. Larry Rosen, a psychologist at California State University, points to the Key & Peele sketch âText Message Confusion,â which shows how our ability to misinterpret the ambiguity of text messages leads to one friend being ready to fight and another being ready to party. (Seriously, there are a lot of ways to read âletâs go.â) âItâs brilliant,â Rosen says. âIt captured beautifully how we read between the lines when even the lines arenât even clear.â (Jordan Peele channeled communication nervousness again in his directorial debut Get Out: Chrisâ friend Rod interprets Chrisâ lack of response as a sign that something is very wrong.)
Ultimately, though, Personal Shopperâas with Get Outâshows the horror that texting can bring. That sounds frivolous, but itâs real. Electronic messages, especially ones from unknown and threatening sources, can have a truly damaging impact. âCan cyber-stalking or hacking or somebody tracking you down, can that be as nerve-wracking as someone following you or someone harassing you?â Barrett says. âThe answer is: Yes, it can.â (For an example of this, check out the under-seen Ashley Benson vehicle Ratter.)
In a recent interview with V Magazine, Stewart said âwhen you speak to someone on the phone, that is a decipherable, understandable exchange. But with text and social media, itâs essentially a dialogue with yourself and your interpretation of a shadow.â Considering how the brain stresses out imagining things while waiting to receive the next text, sheâs not wrong. And with each passing day, we add a new communication platformâFacebook Messenger, Tinder, Snapchatâto our lives and get a new shadow dance to interpret.
âAnything that connects you to people can also be used as a weapon against you.â Barrett says. âThatâs the way things have always been, itâs just that now there are many more ways to be connected to people.â