Reese Witherspoon, who stars as Mrs. Whatsit in Disney's big-screen adaptation of the classic Madeleine L'Engle book, was beaming when she hit the blue carpet at the El Capitan Theatre in Los Angeles for her movie's premiere on Monday night.
As if the 41-year-old actress wasn't excited enough to have people see the film, her two oldest kids -- 18-year-old daughter Ava and 14-year-old son Deacon, whom she shares with ex-husband Ryan Phillippe -- joined their mom on her big night.
Reese told ET's Nancy O'Dell that both of her kids read A Wrinkle in Time in school, so they were "really excited" to finally see the words come to life.
"They know everything, and I can't wait to hear what they think," she said.
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Reese Witherspoon Says She and Daughter Ava Phillippe Don't Think They Look Alike!
"The first thing my son said when I got cast, he goes, 'Aren't these supposed to be a bunch of old ladies?' And I said, 'No, this is a re-imagining' ...He said, 'Doesn't make any sense,' but that's the great thing about this book -- it is a classic, but it's very updated for our time, so it's exciting to see what [director] Ava DuVernay did with it," she added.
The mom of three stunned in a one-shouldered, crystal-embroidered ruby gown by Michael Kors Collection, while Ava was equally as lovely in a short-sleeved black mini with a zipper running across the chest, sky-high black sandals and silver hoops. The mother-daughter duo nearly looked like twins, especially since both rocked smoky eyes and a pink lip and wore their blonde locks in long, loose waves.
Though only Ava took pics with Reese on the carpet, the proud sister snapped a selfie with her little bro ahead of the premiere, sharing the sweet pic on her Instagram Story.
And if you didn't think they were one adorable fam already, Reese's Instagram Story should do it. Before they headed out for the night, the actress asked her kids to explain what A Wrinkle in Time is. They chimed "a book" in unison and raised their hands, which sent their mom into giggles.
The Big Little Liars star's youngest, 5-year-old son Tennessee, didn't attend, but he can't wait to see his mom on the big screen. "He's asleep, but he would be here," Reese told ET. "He's gonna see the movie the minute it opens. He's so excited."