Demi Moore Taught Scout Willis to ‘Feel Beautiful’ Inside (Exclusive) ArticlePure

Scout Willis got it from her mother!

Speaking exclusively to PEOPLE at the Los Angeles premiere of The Substance on Monday, Sept. 16, Willis, 33, revealed that she was taught the importance of appreciating her inner beauty by her mother Demi Moore.

“I think my mom has always been such a model of working on feeling good from the inside because I think there are people who are so exquisitely beautiful from the outside, who still feel so insecure and are in so much pain,” she tells PEOPLE. “So I think she fostered in all of us a real desire to just feel beautiful, feel sexy, feel embodied.”

For Willis, this has relevance to her own life growing up in the spotlight with parents Moore, 61, and dad Bruce Willis.

“Of course, it’s a fishbowl with a lot of cameras,” she adds, before stating that she has had to contend with “cameras throughout many awkward phases of life.”

Yet she shares that she believes The Substance deals with the issue of outer beauty in the best way possible — by making fun of it.

“I feel like this movie is amazing because it’s poking fun a little bit, and it’s giving a satirical kind of critical eye to these beauty standards,” Willis tells PEOPLE.

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In The Substance, Moore plays Elizabeth Sparkle, a celebrity who tries a black-market drug to create a younger version of herself called Sue (played by Margaret Qualley).

“It generates another you. A new, younger, more beautiful, more perfect, you,” reads the official synopsis about the effects of the fictional drug. “There’s only one rule: You share time. One week for you. One week for the new you. Seven days each. A perfect balance. Easy. Right? If you respect the balance… what could possibly go wrong?”

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Speaking to PEOPLE about the message she hopes viewers take from the film, Moore says, “I mean, I certainly hope that not just for women, but for men and women alike, that they walk away finding a little bit more gentility towards themselves. A little bit more compassion.”

In addition to Scout, Moore shares daughters Tallulah, 30, and Rumer, 36, with ex-husband Willis, 69. 

On Monday, the actress posed alongside her three daughters on the red carpet, which also featured costars Qualley, 29, and Dennis Quaid, alongside director and screenwriter Coralie Fargeat.