United Kingdom, Sept. 29 -- Matthew Perry's sister has revealed he spent $7 million "trying to get sober".

The late Friends legend tragically died aged 54 in 2023 after an accidental overdose, and now his sister Mia Perry Bowick has opened up about his struggles in a trailer for Netflix's upcoming documentary about his life.

In a teaser for The One About Matthew Perry, Mia said: "My brother would talk about that feeling of emptiness or loneliness that he couldn't quite fill.

"He spent $7 million trying to get sober. That's how seriously he took his disease."

Elsewhere in the trailer, Mia noted that acting helped her brother with his personal struggles, and gave him a positive focus.

She added: "When he made people laugh, it made him ...