Surprises About Carrie Fisher & Debbie Reynolds from Their HBO Documentary

HBO's screening of the loving documentary "Bright Lights: Starring Carrie Fisher and Debbie Reynolds" was chock-full of new revelations about the late mother-and-daughter icons, People magazine reports.

One detail from their past was Debbie's advice to Carrie not to swear in her movie debut, the classic 1975 film "Shampoo." In the now-famous scene, Carrie's underage character asks Warren Beatty's romeo character if he wants to get romantic — but in fewer words. Debbie thought it would be bad for Carrie to debut using the F-word, suggesting "screw" instead. Carrie followed the script.

Also in the film, Carrie admits she lost her virginity to her actor pal Griffin Dunne just in order to be relieved "of the burden of my hymen." They never dated, and Carrie was grateful their encounter didn't end their bond, saying, "They always say sex can ruin a friendship, but we were young enough that it didn't."

Carrie also talked more about the strict diet Lucasfilm wanted her on in order to look thinner for "Star Wars: The Force Awakens." The studio allegedly required Carrie's personal trainer to provide reports on her measurements and other weight-loss progress.

Carrie's signature drink, Coca-Cola, was apparently a tribute to her father, crooner Eddie Fisher. Eddie plugged the soft drink at the height of his fame, a deal he lost when he left Debbie for Elizabeth Taylor, besmirching his image.

Extremely moving footage of Carrie speaking with her father on his deathbed made it into the film, which was mostly shot in 2014 and 2015, even though Eddie passed away in 2010. Of her late-in-life reunion with her father, Carrie says in the film, “My father, the way I had a relationship with him really is I became his parent. And that's the way to have the relationship. So I got to know him as there was less of him to know."