That's Patty Duke as Neely O'Hara reaching for yet another doll.
Prologue: "You have to climb Mount Everest to reach the Valley of the Dolls. It's a brutal climb to reach that peak. You stand there, waiting for the rush of exhilaration, but it doesn't come. You're alone. And the feeling of loneliness is overpowering..."
Ann: "Neely, you know it's bad to take liquor with those pills."
Neely O'Hara: [entering the powder room - discovers Helen Lawson] Who are ya hiding from, Helen? The notices couldn't have been that bad.
Helen Lawson: The show just needs a little fine tuning.
Neely O'Hara: Don't worry, sweetheart. If the show folds I can always get you a part as understudy for my grandmother.
Helen Lawson: Thanks. I already turned down the part you're playing.
Neely O'Hara: Bull! Merrick isn't that crazy.
Helen Lawson: You oughta know, honey, you just came out of the nuthouse.
Neely O'Hara: It was not a nuthouse!
Helen Lawson: Look. They drummed you right outta Hollywood! So ya come crawlin' back to Broadway. Well, Broadway doesn't go for booze and dope. Now you get outta my way, I got a guy waitin' for me.
Neely O'Hara: That's a switch from the fags you're usually stuck with!
Helen Lawson: At least I never had to MARRY one!
Neely O'Hara: YOU TAKE THAT BACK...
[Neely pulls off Helen's wig while scuffling]
Neely O'Hara: ... oh my God, it's a wig! HER HAIR'S AS PHONY AS SHE IS!
Helen Lawson: Give that back, you!
Neely O'Hara: [flushing the wig down the toilet] So long, honey. Meow!