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Elle remembers "sobbing" during one particularly emotional Dakota Fanning movie.

“When Elle’s in anything, it makes me feel it deeper,” Dakota Fanning said at TheWrap’s Power Women Summit on December 3. “She never can fully disappear into a character totally for me as her sister. She obviously does an amazing job, but I’m always gonna see my little sister a little bit.”

And Elle is just as touched by Dakota's roles, and remembers "uncontrollably sobbing" after seeing Now Is Good, a movie where Dakota's character was dying of cancer. “Because it was my sister, I had a real traumatic reaction after that premiere and the screening,” Elle says. “Obviously the acting, but it was something felt on a deeper level.”

“I’m doing this job, I’m an actor because my sister started before me and I watched her,” Elle continues. “I wanted to do exactly what my big sister wanted to do.”

And their movies have also made an impact on everyone who watches them.

When Brit + Co caught up with Dakota Fanning at the world premiere of The Watchers, I had to ask about one of her most iconic movies: Uptown Girls. "I love it," she says of TikTok memes and edits giving the movie new life. "It's nostalgic for people who are kind of around my age, who grew up watching that movie, I think it's like a comfort movie for people. And so I love that people are still revisiting it and loving it. And maybe now that everyone's older [they're] understanding different things about it."

Dakota starred opposite Brittany Murphy, who also had roles in movies like Clueless, 8 Mile, and Girl, Interrupted. Brittany passed away in 2009 when Dakota was 15. "I loved Brittany so much and I still miss her," she says. "So anytime that she has, you know, a moment where people think about her is also nice."