He called it a show, saying his mother hated to attend memorials. The guests included tap dancers, James Blunt, John Williams' Star Wars themes, and Dan Aykroyd, as well as hundreds of the women's friends and fans.
A heart-tugging image of the empty chair left on the stage in honor of Debbie.
Fisher, 60, died on December 27, four days after suffering a heart attack on a flight from Britain where she had been shooting the third season of a British television comedy.
The deaths of Carrie Fisher and Debbie Reynolds, a day apart in December, sent a shockwave through Hollywood and the communities of fans who adored them.
The public ceremony will be held at the Forest Lawn Memorial Park in the Hollywood Hills, where Fisher and Reynolds were laid to rest; Fisher's ashes were placed in a giant Prozac pill-shaped urn.
"It was a very peaceful exit that only my mother could have orchestrated", he said to booming laughter.
Pausing for effect, he added, "She was trained in Hollywood, where they teach you to make a great entrance and a great exit".
In a statement posted on debbiereynolds.com, Fisher revealed additional details about the memorial. He continued, "If I'd been with our beloved showboat, I might have been able to save her again".
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He echoed a sentiment expressed by many early in his remarks.
The Canadian actor and comedian fought back tears as he said: "We shouldn't be here so soon in our lives".
"So what would the offspring of Princess Leia and Elwood Blues have turned out like amusing, quick, spiritual, haunted, pursued, talented, acerbic, deviant, genius, tech motor device engine and music savvy - in other words, we would have had [Carrie's brother] Todd Fisher". Fisher's response? "It's awful". We just wanted to show up and show our support.
R2-D2 rolled onto stage after Todd Fisher played a video of movie clips and images of the family.
Actress Ruta Lee delivered a touching eulogy about Reynolds and her philanthropy. "It wasn't with Carrie, but she did arrange it", he said drily, to howls from the audience. "And she really just said to me, 'You know, I know that was really hard on you losing your sister..." "My mother always said to me, "I never want to go to my daughter's funeral service".
"He said:" She had long conversations on the phone in my presence with Paul Simon, with whom she was attempting to reconcile at the time of my relationship with her. He recounted how Fisher took him on worldwide trips and "gave me so many firsts".
"You take those genes, and I think you've created a pretty powerful gal ... and she is a lot more like my mother even than Carrie". "It wasn't with Carrie, but she arranged it".