In the documentary viewers see some of the debates the writers had, including whether creatures should appear in the final fight scene against Vecna and the Mind Flayer, as well as the ultimate fate of the lead character Eleven, played by actress Millie Bobby Brown.
It also shows how the main cast has grown over the years as characters and actors, by showing clips of their audition tapes and scenes from the first series, which aired in 2016.
“It was important to really show the longevity and also how everybody developed individually, but also with each other as a group,” says Martina.
A standout element of the documentary is how it showcases the scale of the series’ production.
Hundreds of creatives, cast and crew work tirelessly to create a realistic Hawkins, Upside Down and Abyss to a tight deadline and, at times, without a complete script.
“That pressure on a show that is so beloved and so big is immense,” says Martina.
“I don’t know how the Duffers are doing it, to be honest.
“I love that everybody’s like: ‘We don’t know how to do this, this is impossible’, and then they turn around and they do it.”