How we cite our quotes: All quotations are from All About Eve.
Quote #1
MARGO: Don't get stuck on some glamour puss. […] you're a setup for some gorgeous wide-eyed young babe.
Bill's eight years younger than Margo. This conversation between them is our first indication of Margo's insecurity about her age. She's constantly afraid Bill will leave her for someone younger. Someone like Eve. To his credit, Bill's completely indifferent to their age difference.
Quote #2
MARGO: You bought the new girdles a size smaller. I can feel it.
BIRDIE: Something maybe grew a size bigger.
MARGO: When we get home you're going to get into one of those girdles and act for two and half hours.
BIRDIE: I couldn't get into the girdle in two an' a half hours...
It's not just romance that Margo's insecure about. With age, she has to work harder to maintain her figure. It's not just vanity. It's critical for a woman in her profession to look slim and glamorous.