Jennifer Garner was all smiles at the premiere of her new film The Tribes of Palos Verdes at the Ace Theatre in Los Angeles on Friday
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Jennifer Garner was all smiles at the premiere of her new film The Tribes of Palos Verdes at the Ace Theatre in Los Angeles on Friday.

The 45-year-old actress and mother of three dazzled in a sultry one-shoulder red velvet Johanna Ortiz dress with sweetheart one-shoulder neckline — a look she accessorized with dangling red beaded earrings, a sparkling diamond bracelet, and green velvet Chloe Gosselin heels.

Her hair worn down and relaxed in beachy waves, Garner looked happy as she posed alongside costar Maika Monroe.

In the film, which is adapted from Joy Nicholson’s acclaimed 1998 young adult novel of the same name, Garner plays a mother on the verge of a nervous breakdown after her husband (Weeds’ Justin Kirk) leaves her for another woman shortly after they move to the ritzy beach community of Palos Verdes, California, with their two teenage children (Monroe and newcomer Cody Fern).

Thought their relationship on-screen may suffer some bumps on the road, Garner and Monroe looked happy on the carpet. Monroe, 24, wore a long-sleeved black floral gown with a high slit, waist cutout and turtleneck collar. She punched up her ensemble with blue eye makeup and and clasped ponytail.

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Maika Monroe and Jennifer Garner

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Meanwhile, if Garner’s red velvet gown may bring up memories of the holidays, that’s likely fine with her seeing as she kicked off celebrating the holiday season the day after Halloween.

“#bringonchristmas #ideckmyhallsNov1 #hohoho,” the 13 Going on 30 star captioned a seemingly self-made meme on Instagram on Nov. 1, featuring her posing in a Santa hat next to a tree wrapped in colorful Christmas lights.

Garner received an overwhelming amount of support in the comments section. One international follower pointed out, “In Canada we had Thanksgiving in October, so this is a non issue. We start around November 12 each year. After our Remembrance Day or your Veteran’s Day. We already have one tree up and a Christmas village.”

Last year, the mom of Violet, 11, Seraphina, 8 and Samuel, 5, spent the December holiday with all of her loved ones.

“Family all being together [makes me happiest],” she told PEOPLE in 2016. “My sisters and nieces and nephews and parents will all be together for a week at Christmas.”

The Tribes of Palos Verdes hits theaters Dec. 1