Jane Fonda has been in the public eye for more than 50 years, as
an Oscar-winning actress for the films "Klute" and "Coming
Home," an activist against the war in Vietnam and an exercise
guru who has made more than 20 workout videos (now DVDs). Her
first video came out in 1982 and helped start the aerobics
craze.  Now 75, Fonda is in the middle of what she calls her
third act of life. She has a boyfriend, music producer Richard
Perry. She's still friendly with ex-husband Ted Turner. She had
children with ex-husbands Tom Hayden and the late Roger Vadim. A
few years ago, she said in a recent telephone interview, she
realized she was happier than she has ever been. "It took me by
surprise because I come from a long line of depressives," she
said. "I wasn't very happy as a younger person, yet I found
myself happy."    Fonda is working as much as ever, too. She
plays Nancy Reagan in an upcoming film about President Ronald
Reagan's butler, and she appears in the television series "The
Newsroom." Her newest book, "Pr