About the film
Jay Sebring....Cutting to the Truth is a 2020 American documentary film that studies Jay Sebring's life as the first international pioneer in the industry of men's style and hair. Cited as the inspiration for Warren Beatty's character in the 1975 film Shampoo, Jay Sebring's life ended at age 35 when he and four others were killed by the Manson family in what would become known as the Tate murders.
From the film's Wikipedia article (CC BY-SA 4.0).