The dystopian drama was released on the streaming platform this week and stars Julia Roberts, Ethan Hawke and Kevin Bacon.
Directed by Homecoming's Sam Esmail, the thriller follows Amanda (Roberts) and Clay (Bacon) as they embark on a family getaway that takes a strange turn when a cyberattack triggers a blackout.
Shortly after a news broadcast about the matter is interrupted, father, daughter and Ruth (Mahershala Ali and Myha'la) arrive to warn them about the effects of the attack.
However, as everyone prepares for a potential end-of-the-world scenario, tensions rise between the two families.
While viewers have praised the film, labeling it 'scary' and 'harrowing', they have also highlighted one detail that has been running through their minds.
A subplot throughout the film involves Rose (Farrah Mackenzie), Amanda and Clay's daughter, who is addicted to the 90s sitcom Friends and is devastated by the idea of never finding out what happens to Ross and Rachel after the blackout.
Glued to her tablet at the start of the trip, Rose is close to completing all 10 seasons of the show, which ran from 1994 to 2004.
But when the Wi-Fi eventually cuts out, she can't tune in to the ending and is left unsure how it will all end.
What is the plot hole in Leave the World Behind?
However, as many viewers pointed out, Friends superfan Rose would certainly have noticed the fact her mother appears in the series.
Back in season two in 1996, Julia Roberts guest-starred as Susie Moss in the episode The One After The Superbowl, Part 2.
In it, she played Susie, childhood friend of Chandler Bing (Matthew Perry).
So viewers of the film were left scratching their heads about how the apparent superfan didn't question her mother, who is an overworked marketing executive working in New York, about appearing on her favorite TV show.
Many people pointed out the irony of this on social media.
'Daughter watching Friends on her iPad in Leave the World Behind is going to go crazy when Julia Roberts shows up,' one person posted on X, formerly Twitter.
“It's absolutely sending me that Julia Roberts' daughter character in Leave The World Behind is *obsessed* with FRIENDS but doesn't recognize that she's Julia Roberts on the show (playing Chandler's love interest),” Courtney Howard shared.
Brian Duffield added: “Leave the world behind being about characters watching Friends but never acknowledging that Julia is on Friends.”
Speaking to The Messenger about the Friends connection, Esmail explained that in the cinematic universe Julia Roberts is not playing Amanda, she was simply Rose's mother.
“On a purely intellectual level, in this universe, Julia Roberts is not playing Amanda. She only has Rose’s mother, Amanda Sanford,” he said.
“And on the show, she sees Julia Roberts, and maybe she bears a slight resemblance to her mother, but since it's her mother, she probably doesn't think twice about it.”
He went on to say that this was his “weird, meta-complicated explanation for this.”
Leave the World Behind is streaming on Netflix.
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