Well, I looked around and I admired the Morris office and their executives, and I thought: “Gee, what they do isn’t that hard, you know.” And I like the way they live, and I like those expense accounts, and I like the cars.

And I used to stay late at the office, just like “All About Eve,” and I suddenly thought: “That beats typing.”[17]Her first big addition to her books was actress Julie Harris, who was primarily a stage performer.

She contacted producer Ray Stark and obtained for Perkins a role in director René Clément's film Is Paris Burning?

[14]: 51  Mengers represented Candice Bergen, Peter Bogdanovich, Michael Caine, Dyan Cannon, Cher, Joan Collins, Brian De Palma, Faye Dunaway, Bob Fosse, Gene Hackman, Sidney Lumet, Ali MacGraw, Steve McQueen, Mike Nichols, Nick Nolte, Tatum O'Neal, Ryan O'Neal, Burt Reynolds, Cybill Shepherd, Barbra Streisand, Gore Vidal, and Tuesday Weld, among others.

[6] Mengers ceased to be Streisand's agent, she told the Los Angeles Times, after a disagreement over Yentl (1983), which gained Oscar nominations but was not a big box-office hit.

[20] In 1988, after retiring from the talent agency business, for nearly 20 years, Mengers held A-List Hollywood evening salons of 8-12 people, and more free-flowing and gossipy lunch parties that were open only to women, that included Jack Nicholson, Anjelica Huston, David Geffen, Lorne Michaels, Tina Fey, Diane Keaton, Jimmy Fallon, Gore Vidal, Elton John, Ryan Phillippe, Julia Roberts, Jennifer Aniston, Neil Diamond, Michael Douglas, Warren Beatty, Annette Bening, Princess Margaret, Bill Maher, Martin Short, Graydon Carter, Tim Robbins, Maureen Dowd, Frank Rich, Nora Ephron, Kelly Lynch, Fran Lebowitz, Tom Hooper, Angie Dickinson, Sidney Poitier, Billy Wilder, Robert Downey Jr., Alex Witchel, Alessandra Stanley, Barbra Streisand, Ali MacGraw, Joanna Poitier, Boaty Boatwright, Bette Midler, Sting (musician), Trudie Styler, Barry Diller, Sherry Lansing, William Friedkin, David Semel, Bryan Lourd, Richard D. Zanuck, Mel Brooks.

[22] Mengers died on Saturday, October 15, 2011, from pneumonia, "after a number of small strokes, and a lifetime of illnesses"[22] at her home in Beverly Hills, California, "surrounded by three of her close friends, Ali MacGraw, Joanna Poitier, and Boaty Boatwright",[22] at age 79.