January 04, 2016 12:40 PM

When Amy Adams married Darren Le Gallo in May after nearly 15 years together, their decision to finally tie the knot wasn’t about the commitment – it was about family.

“We always had the commitment but now he’s stuck with me and I can really act out,” joked Adams while talking to U.K.’s The Times magazine. “I’m kidding. The truth is, I feel a stronger sense of family, a bigger sense of permanence, which is a nice thing for me.”

Adams and Le Gallo, both 41, wed in a small, intimate ceremony at a friend’s house outside of Santa Barbara, California, on May 2, 2015. Together they have a 5-year-old daughter, Aviana.

And while Adams previously admitted to not getting “swept up” in the wedding planning (she left that to celebrity wedding planners Yifat Oren and Stefanie Cove), she did have some specific ideas when it came to her dress.

Having walked countless red carpets in designer gowns, the actress wanted her wedding dress to be unlike anything she had ever worn before.

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“Georgina Chapman [Harvey Weinstein’s wife] designed a Marchesa gown for me,” said Adams. “I wanted something that didn’t feel red carpet, so she whipped up something very bridal and very feminine.”

The final product ended up being so special to Adams that she vowed to never wear the dress for any other occasion.

“I said to her that I didn’t want to feel like I had ever worn this dress before, and I don’t want to wear it ever again,” she explained. “I’m keeping it.”

So, don’t expect the dress to be altered, or show up in another reincarnation in Adams’ closet.

“It’s custom!” she told PEOPLE in November. “You can’t make that into anything, you just put it in a box. But yeah, I was really lucky to have Georgina [Chapman] and the whole team work with me on it.”

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