Julia Roberts and Dermot Mulroney’s On-Screen Chemistry: From My Best Friend’s Wedding to August: Osage County

In 1997, Julia Roberts had us rooting for a charming trickster who tried to destroy her best friend’s wedding.

Julia Roberts as 27-year-old food critic Julianne Potter and her best friend, Dermot Mulroney as sportswriter Michael O’Neal, in the 1997 American romantic comedy film My Best Friend’s Wedding (Credit: Sony Pictures Releasing)

Fast forward to 2013, 16 years after My Best Friend’s Wedding, you could still see the chemistry between costars Julia Roberts and Dermot Mulroney.

The two were reunited in their new flick August: Osage County and we couldn’t be happier to see them giggling on the red carpet.

Julia Roberts and Dermot Mulroney at the premiere of August: Osage County at the Ziegfeld Theatre in New York City on December 12, 2013 (Credit: PNP / WENN)

Julia turned 46 on October 28, 2013, just over a month after August: Osage County was released at the Toronto International Film Festival on September 9, 2013.

Julia Roberts flaunts her legs in a beautiful purple Proenza Schouler viscose-crepe dress (Credit: WENN / PNP / Joseph Marzullo)

Wearing a blue Proenza Schouler dress, the A-list actress flashed her famous big smile at the New York premiere of her new movie.

Julia Roberts accessorized with Jamie Wolf earrings and a necklace by celebrated jeweler Wilfredo Rosado (Credit: WENN / PNP)

She styled the blue dress with Charlotte Olympia platform pumps, Jamie Wolf earrings, and a gorgeous Wilfredo Rosado emerald-and-diamond necklace.

Julia Roberts shows off her Wilfredo Rosado emerald-and-diamond necklace

The necklace is made of 18k black rhodium-plated gold and features stunning emerald stones and diamond accents.

Julia Roberts displays her feet in Charlotte Olympia heels (Credit: David Cardiff / WENN)

It has about 32 karats in total! We’re not sure how much it is, but we’re betting it’s pretty expensive.

Wilfredo Rosado Green Rhythm Necklace