PartyLines- photographs by Patrick McMullan

What was your ‘Wow!’ moment in your career, when you felt like you'd arrived? “When I paid off my student loans.” —Meryl Streep

—Robert Redford

Do you have a favorite movie of your mother's? “Sophie's Choice. It's fucking brilliant.” —Mamie Gummer (RETNA)

—Christopher Walken

When you cast Meryl Streep, is your work done? “All I have to do is sit and wait and be amazed and surprised.” —Mike Nichols (GETTY IMAGES)

—Amy Adams (GETTY IMAGES)

You're in the musical Mamma Mia!. How do you prepare? “All of a sudden you step out of character and dance and sing. So it's a mental preparation to just have the courage to do it. ” —Stellan Skarsgard (RETNA)

—Glenn Close(RETNA)

Meryl Streep is going to be in the movie version of Mamma Mia!. Is there a role she can't play? “No. I'm still looking, but I can't find it.” —Stanley Tucci (GETTY IMAGES)

—Uma Thurman (GETTY IMAGES)

Where are your trademark red high-tops tonight? “I just decided to dress up and be dignified. Be an adult.” —Garrison Keillor

—Tony Roberts (RETNA)

What's your favorite red-carpet story? “I could hear my mother saying, ‘Wendy!’ and Federico Fellini goes into the crowd to pull her out. You know Italians and their mothers. ” —Wendy Keys

Should Meryl Streep take over for Katie Couric at CBS? “She'd steal everybody's job. No one would watch anything else if Meryl was doing the news at night.” —Jonathan Demme (GETTY IMAGES)