The Grace and Frankie star has taken up many social causes throughout her life, including women's rights and protesting the Vietnam War, which have often made her one of the most controversial celebrities.

She reveals that at one point her late father, acting legend Henry Fonda, feared her outspoken opposition to the war in Vietnam would wreck her career, and she told him she didn't care if she had to turn her back on Hollywood.

"I didn't become an activist until I was 31," she tells actress Brie Larson in a new interview for Net-a-Porter's The Edit. "When I found out what was really happening in Vietnam I didn't care if I ever worked again.

"I considered leaving the business to become a full-time activist. My father was terrified for me. He remembered the 1950s when people's careers were destroyed (by communist hunter Joseph MCCarthy). (He said), 'It's possible the (Hollywood) blacklist will be brought back'."

After deciding not to give up acting, Jane turned her focus to making movies that showcased her views.

"Your activism can be brought into film in many ways," she says. "I started making movies that reflected my values.

"I began as a producer with Coming Home, China Syndrome and Nine to Five. I think my acting improved when I became an activist - I see things from a broader perspective."