Fans will be able to pay their respects to Debbie Reynolds and Carrie Fisher during a public memorial Saturday at Forest Lawn Memorial Park-Hollywood Hills, where the late stars were buried together in January.
The joint service - described as a "celebration of life" - will begin at 1 p.m., Todd Fisher said in an announcement about the tribute for his mother and sister on his website.
"We will be celebrating their lives with friends, family members, and the people who loved them, you," he wrote in the announcement.
The memorial will take place inside the cemetery's Hall of Liberty, which, according to the Forest Lawn website, seats more than 1,000.
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Seating will be on a first-come basis, according to Todd Fisher. Those who don't get seats can watch the celebration outside.
"There will be room for overflow in the huge lobby as well as outside with screens to watch and hear the service," Fisher said.
Carrie Fisher, best known for playing Princess Leia in the "Star Wars" movies, died on Dec. 27 after suffering a heart attack. She was 60 years old.
Reynolds died the next day at age 84. The screen legend grew up in Burbank and went on to star in such iconic films as "Singin' in the Rain" and "The Unsinkable Molly Brown," for which she received an Oscar nomination.