offered an up-and-coming Aussie actor the opportunity of a lifetime by allowing him to walk the red carpet by her side on Sunday.

Proving why she is known as one of Hollywood's kindest stars, Nicole arrived at the Dolby Theatre in LA with Sydney-born Sam Rechner, 21, who recently made his big-screen debut in Steven Spielberg's semi-autobiographical film .

Sam plays high school bully Logan Hall in the coming-of-age film, which was nominated for Best Picture, but lost to Everything Everywhere All at Once.

Nicole, 55, whose official plus-one was her country music star husband Keith Urban, held hands with Sam on the champagne carpet as curious reporters asked them about their unlikely friendship.

'This is Sam, who is the son of my best friend since we were four, and he's in The Fabelmans,' Nicole told Canadian news outlet .

Speaking to , Nicole praised Sam for earning 'his way onto the Oscars carpet'. 

Sam also joked he was the 'doppelgänger' of Nicole's husband Keith, 55, who was also spotted on his wife's arm at the ritzy ceremony.

While Sam may not be a household name just yet, he boasts some well-connected relatives.

Nicole Kidman (centre) offered up-and-coming Aussie actor Sam Rechner, 21, (right) the opportunity of a lifetime by allowing him to walk the Oscars red carpet with her and husband Keith Urban (Ieft) on Sunday 

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