Despite growing up with famous parents Demi Moore and Bruce Willis, Rumer Willis hasn't managed to evade tragedy. She's dealt with anxiety, bullying, and more.

Scout Willis spoke exclusively to PEOPLE about the positive influence of her mom Demi Moore at the Los Angeles premiere of 'The Substance' on Monday, Sept. 16.

Demi Moore posed on the red carpet with her daughters Rumer, Scout and Tallulah Willis at the Los Angeles premiere of her new movie ‘The Substance’

The “Ghost” star, 61, walked the red carpet with Rumer, 36, Scout, 33, and Tallulah, 30, at the Directors Guild of America Theater in Los Angeles on Monday.

The Ghost star wore a strapless, Oscar de la Renta red dress that included a mosaic effect pattern with bright black, maroon and burgundy tiles. She accessorized her look with three diamond strand bracelets,

Demi Moore was joined by daughters Tallulah, Scout and Rumer Willis at the Los Angeles premiere of "The Substance."

The premiere was a family affair for Moore; she was joined by her three daughters with ex-husband Bruce Willis: Scout, Tallulah and Rumer. See all the stars who attended the film's red carpet premiere in L.A., ahead of its Sept. 20 release.

Demi Moore hit the red carpet for her new film "The Substance" on Monday night with daughters Scout LaRue Willis, Tallulah Willis and Rumer Willis by her side. The actress posed with her family at the Los Angeles premiere wearing a red strapless gown.

And Demi Moore looked sensational once again as she opted for an effortlessly chic jumpsuit for the MUBI's The Substance Los Angeles premiere on Monday evening. The actress, 61, showed off her incredible physique in the strapless number which featured a white bodice and black floaty trousers.