It was Caleb's request to wear a camouflage bandana in the show; he wears it for the final three episodes.

To direct Millie while she was underwater, the Duffers communicated with her through a small radio in her ear.

On Thursday (July 25), Brown posted a video of her and Sink performing a scene from the musical Frozen in between takes of Stranger Things 3. Winona Ryder and Matthew Modine (Dr. Martin Brenner) have appeared together once before, in the music video for Roy Orbison's 'A Love So Beautiful'.

Stranger Things is available to stream on Netflix.

Earlier this month the actress spoke to Entertainment Weekly saying, "You know the scenes where it looks like I’m falling? Hopefully, Brown will post more singing videos soon. Stranger Things Frozen Music Video With Millie Bobby Brown, Eleven and Max an “iconic, powerful duo,”. (@milliebobbybrown) on Instagram: "Frozen The Musical - featuring @sadiesink_ as Anna and @milliebobbybrown as Elsa ????". This latest behind-the-scenes video from Stranger Things follows a short video shared by Millie Bobby Brown recently where she showed how some of the special effects were done in Stranger Things 3. The Duffers showed her how cool Charlize Theron looked in Mad Max: Fury Road after which Millie agreed to it. Unfortunately, their scene study was cut short so they could film their Stranger Things scenes. Charlie Heaton (Jonathan Byers) and Millie Brown (Eleven) are both from the UK.

He is a particular fan of Sam Raimi's early work. Sure, Brown might need a little more time to become Elsa, but that’s what rehearsal is for, right?

Millie had to shave most of her hair off for the show and as can be expected of any 11­-year-old girl this was a terrifying prospect.

The only question now is, whose powers would you rather have Eleven’s or Elsa’s? Before starting the show, the writers all watched (or rewatched) a large list of films, including E.T., Stand By Me, The Goonies, The Thing and A Nightmare on Elm Street. The gang really did create a salt bath, and Millie Bobby Brown actually floated - there were no effects used!

Whenever the time comes for Stranger Things to end, we think we know the perfect, next gig for Millie Bobby Brown and Sadie Sink, Frozen The Musical.Millie … sic The scene was from the moment when Eleven saw Billy's childhood memories. The pair appear to be taking some time out from filming the hit TV show, as a member of the crew is filming the girls singing their hearts out!

The title sequence was inspired by the work of Richard Greenberg, who designed a number of classic 80s title sequences including Alien, Altered States, Superman and The Goonies - which starred a young Sean Astin, who later appeared in Stranger Things as Joyce's boyfriend Bob Newby. You can also tune in to KISS FM UK and our other KISS channels including KISSTORY, KISS Fresh, KISS Dance, Hip- Hop, Jams and more – all within the official KISS KUBE app.

In the video, Millie, who plays Eleven, can be seen reenacting a scene from the ever-popular Frozen, alongside Sadie who plays Max.

KISS is owned by Bauer Radio Limited. After seeing this, it’s hard to let go of the idea of Eleven and Max starring in Broadway’s Frozen. Gaten's voice changed so much by the time production ended that the sound team were unable to use him for additional dialogue recording. Binge-watched Stranger Things 3 in one sitting? It’s the Stranger Things and Frozen crossover you didn’t know you needed. Although the show was shot digitally on the RED Dragon, a layer of real film grain was applied to help achieve a more vintage look. Stranger Things Season 3 aired on July 4, and fans everywhere celebrated America’s birthday with the return of the fabulous Netflix series. Either way, it’s nice to see onscreen besties Eleven and Max getting along offscreen, too.

To help sell the show, the Duffers edited a mock 'trailer' combining clips from over 25 feature films, including E.T., Nightmare on Elm Street, Super 8 and Halloween. 3.8m Likes, 30.1k Comments - mills ????

Gaten played Gavroche in Les Miserables and Caleb played Young Simba in The Lion King.

But thankfully, whilst we have a LONG wait until the next season, Millie Bobby Brown, has shared an amazing video of her singing with her co-star Sadie Sink. KISS is part of Planet Radio, Millie Bobby Brown recently where she showed how some of the special effects. Hopper's trailer was purchased by the art department for $1. Millie Bobby Brown shared a hilarious behind-the-scenes moment from the set of Stranger Things 3, showing the young star performing an iconic scene from Frozen alongside costar Sadie Sink. In the background, someone can be heard saying, "You can interrupt if you need to!

The toddlers on set were very scared by the 'monster', but they were calmed when told that he was just like the monsters in Monsters Inc. Finn Wolfhard, who plays Mike Wheeler, is a film buff and wants to be a director when he grows up. If Frozen needs an understudy, may we suggest Sink?