Kristen Stewart looks absolutely glamorous as the cover girl of the September issue of W Magazine. The issue features the actress in a series of photos shot by Mert Alas and Marcus Piggott, who have previously photographed Penelope Cruz, Kate Moss and Gisele Bundchen.

In the interview with W, the 21-year-old Stewart talks about growing up as a tomboy, not being in charge of her life, and the first installment of "The Twilight Saga: Breaking Dawn," which features a wedding scene between her character, Bella Swan, and the vampire Edward Cullen, played by Stewart's real-life boyfriend Robert Pattinson.

"This was my first wedding. It was insane. And odd. The wedding dress experience was a huge deal. I tried on one version of the dress, and it was like tweak and tweak and alter and tweak and change, and then it's done. BFD dress. Huge deal," Stewart told W.

Stewart has come a long way since her projects with Jodie Foster ("Panic Room"), Emile Hirsch ("Into the Wild") and Meg Ryan ("In the Land of Women").

Production of Stewart's next film, "Snow White and the Huntsman," is currently underway in London.

"The Twilight Saga: Breaking Dawn Part 1" opens in theaters on Nov. 18.

Scroll down for a photo tribute to Kristen Stewart, glamorous cover girl.