Glen Powell has paid tribute to "a loyal and generous friend" after her cancer diagnosis.
The 36-year-old actor has revealed his longtime friend Charlie Hounslow - a makeup artist who has worked on the likes of 'Gladiator II', 'Asteroid City' and 'Mission: Impossible - The Final Reckoning' - is battling stage 4 glioblastoma.
He wrote on his Instagram Story: "Charlie Hounslow is a wonderful human I have the pleasure of working with every day.
"She's a loyal and generous friend with an infectious laugh, and true zest for life.
"Charlie has just been diagnosed with Stage 4 Glioblastoma - an aggressive and currently considered incurable brain cancer.
"Every contribution, big or small, helps get her the care she needs."
According to the Mayo Clinic, glioblastoma is "a type of cancer that starts as a growth of cells in the prain or spinal cord".
Currently, there is "no cure" for the disease.
A GoFundMe page has been set up to raise money "toward her treatments and living costs", including a treatment programme at a "highly promising clinic in Germany" which costs around $200,000 (£150,000).
Already, almost $164,000 has been raised of the $300,000 target.
A description on the GoFundMe reads: "To everyone who knows Charlie — you’ll know her passion for her work, her infectious laugh and sense of humor, her incredible zest for life, and, above all, the love she gives so freely to her friends and family.
"You’ll also know that Charlie is fiercely independent — the last person who would ever ask for help. So, here we are, asking for her."
According to the page, the makeup artist has been "suffering a few awful headaches" and got admitted to Watford Hospital, "where a CT scan revealed a mass on her brain".
Her family added: "An MRI confirmed the worst. Charlie was then transferred to UCLH Queen Square, a specialist neurological hospital."
Charlie's brother Nick Hounslow has flown from Los Angeles and moved into Charlie's home in London "so he can stay by her side through everything".
It's said money raised "will also help keep Nick here to support her, accompany her to appointments, and advocate for her care".
