Carrie Fisher will be honored with a posthumous star on the Hollywood Walk of Fame later, but a family dispute risks overshadowing the occasion.

Star Wars Day, Thursday, May 4th, is a day when Hollywood pays tribute to Princess Leia.

A row has broken out between Fisher's daughter and siblings.

Billie Lourd's brother and sister have criticized her for not inviting the family. Lourd responded by accusing them of "capitalizing on my mother’s death".

Mark Hamill, the Star Wars actor, led the campaign to give his co-star her own tile at the Hollywood Walk of Fame in 2018.

He said that when it was announced last month, she would receive this honor finally, it was "long due and well deserved".

Todd Fisher, however, said that he wasn't on the list of guests to witness its unveiling.

He told TMZ: "It's heartbreaking and shocking to me that I was intentionally omitted from attending this important legacy event for my sister, Carrie."

Half-sister Joely Fisher posted a message on behalf of herself and sister Tricia Leigh Fisher saying: "Strangely we won't be in attendance to celebrate our sister, whom we adored.

"For some bizarre, misguided reason our niece has chosen not to include us in this epic moment in our sister's career.

"This is something Carrie would have definitely wanted her siblings to be present for. The fact that her only brother and two sisters were intentionally and deliberately excluded is deeply shocking."

She added that they had "all been grieving the loss of our favorite human for some years now… we have given Billie the space to do that in her own way".

The siblings had been "nothing but loving and open, consistently", she said.

"This isn't about a photo op on Hollywood Blvd," she wrote. "This is about celebrating the permanency of Carrie's legacy in this industry, taking her place with a star on the iconic walk of fame alongside our parents."

Lourd responded in a statement to the Hollywood Reporter. "I apologize to anyone reading this for feeling the need to defend myself publicly from these family members," she wrote.

"But unfortunately, because they publicly attacked me, I have to publicly respond. The truth is I did not invite them to this ceremony. They know why.

"Days after my mom died, her brother and her sister chose to process their grief publicly and capitalize on my mother's death, by doing multiple interviews and selling individual books for a lot of money, with my mom and my grandmother [actress Debbie Reynolds]'s deaths as the subject.

"I found out they had done this through the press. They never consulted me or considered how this would affect our relationship. The truth of my mom's very complicated relationship with her family is only known by me and those who were actually close to her.

"Though I recognize they have every right to do whatever they choose, their actions were very hurtful to me at the most difficult time in my life. I chose to and still choose to deal with her loss in a much different way."