Jennifer Lopez wears wedding dress from ‘old movie’ to marry Ben Affleck

Jennifer Lopez made sure she had her “something old” at her low-key Las Vegas wedding to Ben Affleck this weekend.

The “Marry Me” star confirmed her marriage to the “Gone Girl” actor in her “On The JLo” newsletter Sunday, revealing that she said “I do” wearing “a dress from an old movie.”

Lopez, 52, actually appeared to have two different looks for her nuptials, one of which was a white lace off-the-shoulder gown with long sleeves, a sweetheart neckline, corset bodice and fishtail train along with a matching lace-trimmed veil from Zuhair Murad’s bridal collection.

Photos included in her newsletter also show the superstar modeling a white sleeveless boatneck gown with a quilted texture — presumably the vintage find.

Affleck wore a white tux from his own closet, as Lopez wrote, as the couple exchanged “the rings we’ll wear for the rest of our lives” at the Little White Wedding Chapel.

J.Lo and Affleck, 49, met in 2001 on the set of their movie “Gigli,” making the Old Hollywood-inspired bridal gown a fitting choice.

They got engaged for the first time the following year, with the “Argo” director popping the question with a 6.10-carat radiant-cut pink Harry Winston diamond worth an estimated $2.5 million.

While they never made it down the aisle, Affleck managed to outdo that sparkler the second time around; in April, he proposed with an 8.5-carat natural green diamond flanked by a duo of trapezoid-shaped white diamonds.

“A green diamond of that size is incredibly rare and would dwarf the value of their previous engagement ring,” The Diamond Pro CEO Mike Fried told Page Six Style at the time. “I would value the ring well over $5 million and [it] could be worth more than $10 million.”

Wrote Lopez in her newsletter, “Love is beautiful. Love is kind. And it turns out love is patient. Twenty years patient.”