See the Official Trailer for Sadie Frost’s ‘Twiggy’

Jean, Marisa, Penelope, Veruschka…the list of models who made fashion in the 1960s sing—and swing—is long, but it wouldn’t be complete without a certain girl from the London suburbs with a boyish blonde pixie and dark, spidery eyelashes.

That, of course, was Twiggy, née Lesley Hornby. Standing all of 5’6”, with a slim-hipped figure that would totally transform the modeling landscape, Twiggy made her debut on the cover of Vogue US under Diana Vreeland in April 1967, photographed by Bert Stern. Shoots for French Vogue, Vogue Italia, and British Vogue would soon follow.

This fall, the tale of Twiggy’s unlikely ascent from the British working class into the global fashion firmament—and well beyond it—is the subject of a new documentary from Sadie Frost (Quant), with interviews from the likes of Stella McCartney, Paul McCartney, Sienna Miller, Brooke Shields, Joanna Lumley, Poppy Delevingne, and, of course, Twiggy herself.

“After my debut documentary on the 1950s and ’60s fashion designer Mary Quant, I wanted to dive deeper into the era and cultural figures that paved the way for how fashion evolved,” Frost noted in a statement. “In this film, I’ve explored the many twists and turns that Twiggy has faced throughout her remarkable life, revealing, for the first time, the woman behind the icon.”

After two special screenings in New York and Los Angeles, Twiggy will be released on demand and on DVD on September 22.