Naomi Watts and Nicole Kidman's Friendship, From Down Under to Top of the A-List

Naomi Watts and Nicole Kidman aren't just fellow Aussie actresses; they're also best friends. The ladies have been close since attending high school at the Phillip Street Theatre in Sydney, and their friendship is evident at movie premieres and award shows to this day. In 1991, they starred together in the Australian independent film Flirting. Of her relationship with Naomi, Nicole has said that they are "very, very good friends and have maintained that through so many things," adding, "I think that's really rare, particularly for actresses, and I take a lot of pride in that." Naomi has also revealed that the two share "naughty wicked senses of humor" and that while they "definitely go to glamorous dinner parties" they can also "sit in a room and motormouth each other." In honor of their decades-long friendship, here are Nicole and Naomi's sweetest photos.

Nicole presented Naomi with a Movieline breakthrough performance of the year award for her role in Mulholland Drive back in November 2001.

The two shared a sweet embrace at the Independent Spirit Awards in March 2002.

Naomi had two dates — her BFF Nicole and her then-boyfriend, the late Heath Ledger — at the premiere of The Ring in October 2002.

Naomi and Nicole were side by side for a Golden Globes afterparty in January 2005.

They held hands in their gorgeous gowns while arriving on the red carpet for the Oscars in February 2007.

Naomi chatted with Nicole and her husband, Keith Urban, at the Independent Spirit Awards in February 2011.

Naomi and Nicole stayed close on the red carpet at the Producers Guild Awards in January 2013.

They toasted on stage during Nicole's hosting gig at the G'Day USA Gala in January 2015.

They shared a cheeky moment during the Crystal + Lucy Awards in June 2015.

Naomi was all smiles while posing with Nicole at the Crystal + Lucy Awards in June 2015, where she was honored for her excellence in film.

The two linked up during the SAG Awards in January 2016.