Millie Bobby Brown has revealed what it's like working with Henry Cavill, calling their friendship a "real adult relationship" in a recent Deadline interview.
The British native is currently promoting her and Cavill's new Netflix flick, Enola Holmes 2 - which continues the story of Sherlock Holmes' younger detective sister, Enola. This time, however, the movie will focus on the real stories of female oppression during the 1880s.
In her interview, the 18-year-old touched upon the difference in her relationship with Cavill, as opposed to the relationships she had with her co-stars Noah Schnapp and Charlie Heaton in the hit series Stranger Things.
"It's different because I grew up with Noah and Charlie. I met them when I was 10. So, for me, it does feel like your schoolmates.
"And with Henry, it feels like a real adult relationship. Like a really good friendship, a really healthy one. One that we have terms and conditions. I know Henry. He has terms and conditions with me," she said.
"I'm not allowed to ask about his personal life. It's like, 'Millie, shut up. No.' And I'm like 'Understood.' Whereas with the Stranger Things kids, it's different. There's no boundaries because it's like we're all siblings. But with Henry, he's very strict with me, which I appreciate," Brown added.
The actress - who is currently dating Jon Bon Jovi's son, Jake - has previously discussed her love of acting, and how she's able to transform herself in her roles.
"I enjoyed being different people because I always struggled with self-identity and knowing who I was. Even as a young person, I always felt like I didn't quite belong in every room I was in. I also struggle with loneliness a bit," she told Allure earlier this year.
"I always felt quite alone in a crowded room, like I was just one of a kind, like nobody ever really understood me. So I liked [playing] characters that people understood [and] people could relate to because I felt like no one could relate to Millie," the teen added.
Brown is not just a gifted actress, however, as she's also studying human services online at Purdue University. The teen says this course is where "you learn about the system and how to help young people," something that may help her in her role as a Goodwill Ambassador for UNICEF.
Enola Holmes 2 is available now on Netflix.