Actor Julia Roberts and cinematographer Danny Moder celebrated their 19th wedding anniversary on Sunday and to mark the occasion, the 'Pretty Woman' actor shared a rare photo with her husband on her Instagram handle. 

"19 years. Just getting started!" the 53-year-old actor captioned the image in which she was seen wrapping her arm around her husband. 

Several of their friends and colleagues took to the comments section to congratulate the couple. Among them was actor Rita Wilson, who wrote, "Happy happy anniversary! Gotta celebrate big on 20th!"

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The couple first met on the sets of her movie 'The Mexican' in 2000. They tied the knot in 2004 in New Mexico. Their wedding ceremony was reportedly attended by George Clooney and Bruce Willis. The couple has three children- 16-year-old twins Hazel and Phinnaeus, and 14-year-old son Henry. 

Roberts was previously married to singer-songwriter Lyle Lovett, while Moder got separated from his former wife, make-up artist Vera Steimberg, in 2002.

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In 2015, Roberts, who is private about her personal life, revealed that the secret to a happy marriage was kissing. She also said that she enjoyed having her husband's company on the sets of her movies. 

"If we got to go to work together and come home together, all that work time, when you come home and 'Oh, honey, how was your day?' ... We did all that in the day and in the car. And by the time we got home were able to just put it all away, which was really delightful," she said in an interview.

In another interview two years later, she again raved about her married life. 

"I mean every day my husband walks in the door it's like a recurring dream. I'm like, 'Ah, he's back!'" she told PEOPLE.