United Kingdom, March 25 -- Laura Dern has finally started understanding her own "sexuality" in her 50s.

The Big Little Lies star, who turned 59 last month, has opened up abut aging and the idea of exploring sexuality through her acting roles.

She told AARP: "You know, it's interesting. What they think you want to explore as a female actor is so bizarre.

"Like to explore sexuality at 20 in my case meant, 'Tell me who you want me to be, or what you think is sexy or pretty, and I'll try to mimic that in a film. I don't know my own self or my own sexuality yet.'

"But at 50, it's like, 'This is what's interesting. This is what's sexy. That's what's unattractive. This is what feels human.' Vulnerability is sexuality."

Although the Jurassi...