Jennifer Lopez and Ben Affleck made a surprise trip down the aisle in July — sealing their Bennifer status forever. 

The twice-engaged couple got married at the A Little White Wedding Chapel in Las Vegas, Nevada, Lopez confirmed via her On the JLo fan newsletter.

Lopez wore two different dresses: a sleeveless floral jacquard gown, which she said hailed from an "old movie," and a long sleeve off-the-shoulder lace dress with a matching veil. It's unclear when during her wedding she wore each dress.

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Social media has turned into a full-blown frenzy as eagle-eyed fans and fashion blogs try to uncover what old movie she's referencing. Could it be a movie Lopez starred in or is the dress from any old movie? The singer has played a bride in nine films and has worn many wedding dresses in scenes from shopping for gowns to walking down the aisle. Each time someone has tried to crack the code, it's led to a dead end.

USA TODAY has done our own investigating, and this is what we've learned about the "old movie" dress.

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Lopez shared a video of herself in the full-length jacquard dress while in the dressing room ahead of exchanging her vows.

Patricia Korepta, a rep for designer Alexander McQueen, confirmed to USA TODAY the dress is McQueen's "Floral Jacquard Full-Skirt Gown." The brand has yet to respond regarding the year the dress was created.

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The bride only shared a glimpse of her second dress in photos with Affleck, but the full ensemble deserves attention.

A rep for Zuhair Murad confirmed to USA TODAY that lace, off-the-shoulder gown and the matching veil Lopez wore is part of its upcoming Spring 2023 bridal collection.

The Amelia dress "will be released in October, but you can already pre-order it," the sales team shared. To look like Lopez on your wedding day, the dress is approximately $10,433 and the veil is $2,715.

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Given that the Zuhair Murad gown is from a future collection, that rules out that dress as the one Lopez said is from an "old movie." So that leaves everyone looking at the Alexander McQueen dress.

Some fans speculated the dress was worn by Lopez in the cover photo of 2004's "Jersey Girl." The singer starred as the wife of her now-husband Affleck's character. Shortly into the film, her character dies during childbirth to the couple's daughter Gertie.

But "Jersey Girl" costume designer Juliet Polcsa tells USA TODAY "the two dresses are not the same piece."

"The dress worn by Ms. Lopez over the weekend does not appear to be the same dress that was made for 'Jersey Girl,'" says Polcsa's rep Rocco Hindman.

The neckline to the McQueen dress looks similar to the one worn in the movie poster, however, Affleck is covering the key difference between the wardrobe pieces in the photo. The "Jersey Girl" dress Lopez wore features a keyhole, according to stills from the movie. 

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The race to uncover the "old movie" wedding dress is made much more complicated due to Lopez's nine stints as a bride on the big screen. The "If You Had My Love" singer first portrayed a bride in 1995's "Mi Familia (My Family)." The film was centered on the lives of a multigenerational Mexican-American family living in Los Angeles, but Lopez is briefly shown taking wedding photos in a bridal gown and veil.

Lopez has also been styled in several white dresses in films that have nothing to do with marriage. The multihyphenate never mentioned in her newsletter whether the "old movie" dress was something from a movie in which she was a bride or any ordinary movie. Lopez has been in at least 36 films, according to Women's Health. The mysterious dress very well could be from a movie not on the list below. 

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Here's a timeline of all the films Lopez has played a bride before 2022:

Contributing: Edward Segarra, Elise Brisco