The Australian star received the 2025 Palm Springs International Film Festival's international star award on Friday for her performance in Babygirl at a ceremony, and teared up as she paid tribute to her mother, who died in September.
After thanking director Halina Reijn for casting her in the movie, the 57-year-old told the audience she was "still grieving" after her mother's death.
She then teared up as she dedicated the award to her mother, Janelle.
"Thank you for giving me the chance to say, 'This is for my mum.' My whole career has been for my mum and my dad, who are not here now.
"I'm still going to keep working and giving to the world because I love what I do and I love you all, and I'm so grateful for the privilege to be a part of the film community.
"I'm sorry that I'm crying, I didn't want to do that. But I feel my mum right now so this is for you."
Kidman previously insisted that she is "allowed to grieve" for her mother however she wanted to.
Speaking on CBS Sunday Mornings in December, she said: "Wow, three months on, and people say to me 'Yeah, she was 84, a good life ...' But that was my mum. It doesn't matter what age someone is. There is no limit on grief, you don't have to have a time limit on it, you don't have to be all better by this time.
"You're allowed to pass through in waves and people go, 'Oh well, whatever', but it's my mama, my life, and I'm allowed to process and grieve in the way I want to."
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