Julia Roberts & 'Christmas Train' Star Dermot Mulroney's Close Relationship — A Glimpse Inside

Julia Roberts and Dermot Mulroney's close friendship began after filming for the movie, "My Best Friend's Wedding."

Working with friends is one of the most productive ways of spending time together and makes coming to work meaningful. This is a fortune that best friends Julia Roberts and Dermot Mulroney have shared through the years.

BECOMING BEST FRIENDS

The co-stars had their first stint together in the 1997 flick "My Best Friend's Wedding." Years later, both reunited in 2013's dramatic comedy "August: Osage County."

The duo is also booked for a three-peat with Amazon's soon-to-stream psychological thriller "Homecoming."

"It's one of the reasons why being in the business so long is so fruitful when you can return to relationships," said the Oscar-winning actress as she reunited with Mulroney for a project.

Roberts continued to become a fan favorite in classics such as "Notting Hill," "Erin Brockovich," and "Ocean's Eleven."

Mulroney strongly shared the same sentiments, calling it a privilege to be working with the "Pretty Woman" star as he remembered all of their incredible scenes. He said:

"She happens to be my best friend, and all of that's been pretty well-chronicled, I think."

MAINTAINING A CLOSE RELATIONSHIP

It's not something new for the on-screen partners to say positive things about each other. In 2016, the 56-year old actor-musician said he'd "walk a mile on broken glass" for the actress.

Their relationship has caught the attention of many, and the Gold Derby Award nominee certainly does not mind, referring to the actress as a "delightful topic."

The pair previously teased the possibility of a sequel to "My Best Friend's Wedding." While Mulroney admitted that he has no clue of a possible storyline, he feels very rewarded knowing people continue to hold the characters dearly.

INDIVIDUAL SUCCESS

Despite the success that has come with their on-screen partnerships, the actors have found success in many other projects.

Roberts continued to become a fan favorite in classics such as "Notting Hill," "Erin Brockovich," and "Ocean's Eleven."

On the other hand, Mulroney has also taken his name to greatness, bringing his presence to series "New Girl," "Shameless," and "American Horror Story." It's without question that the audience is up for a thrill whether the stars will be pairing or not.