Actress Kate Winslet has released a new photo book focused on raising awareness of autism and featuring some of the most popular names in Hollywood.

George Clooney, Meryl Streep, Julia Roberts, Tom Hanks, Justin Timberlake, Angelina Jolie, Anna Wintour, Sting and Leonardo DiCaprio are just a few of the 100 portraits found in "The Golden Hat: Talking Back to Autism." Each celeb is shown wearing a "golden hat" (or fedora) plucked from Winslet's closet and answering the question, "If you could only say one thing, what would that be?"

Sales will benefit the Golden Hat Foundation, a nonprofit the Oscar-winner started in 2010 after narrating a film about a 14-year-old boy with non-verbal autism.

"I had this feeling of, 'I need to do something else,'" she told USA TODAY. "It wasn't just a case of 'what can I do to help the cause?' It was something much more profound than that."

According to the site, the book features shots taken in a wide-range of locales including bathrooms, inside dressing rooms and on movie sets.

celebrities and autism awareness

"The truth is, I don't really know these people," Winslet says of her famous participants. "They're not my friends. I am just like everyone else … I don't really know that many famous people, that's not my life. I'm a mum, I go to work, and then I'm a mum. It really was a case of bribing people for phone numbers."

A trailer for the Winslet-narrated film, "A Mother's Courage: Talking Back to Autism," is below.

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Kate Winslet launches new book to benefit autism charity
'The Golden Hat: Talking Back to Autism' features celebrities from Leonardo DiCaprio to Julia Roberts.