For fans of the classic MGM musicals, Marge Champion along with her second husband, Gower, became song and dance legends with such films as "Show Boat" and "Give the Girl a Break." But long before Champion dawned the big screen with her impressive footwork, she provided the moves that would help give life to one of the most iconic characters in movie history.

Nearly 72 years after its release in theaters, Champion is still being celebrated for her work on "Snow White and the Seven Dwarfs," which makes it debut on Blu-ray disc (Walt Disney Home Entertainment) Tuesday.

Now 90, Champion vividly recalls her work on the film like it was yesterday. And just when she thought Disney's first full-length animated feature couldn't get any better, a screening of it for the first time in its new format gave the film a whole new meaning to the veteran performer.

"With this new Blu-ray, the movie is going to have a whole new effect on people," Champion said in a recent @ The Movies interview. "Even I was skeptical, but after seeing it at theme park last week, it's like a brand new experience."

The three-disc Blu-ray/DVD combo "Diamond Edition" of "Snow White" details a bevy of behind-the-scenes work on the film, including footage of Champion during her work on the film. The standard edition of the re-release of "Snow White" comes out Nov. 24.

Champion was essentially one half of the talent that brought the famed Disney princess to life. The other half, Adriana Caselotti -- an operatic coloratura soprano -- provided Snow White's speaking and singing voice; while Champion modeled the character for Disney's animators and provided movements to give them frame of reference.

"People joked around and we were known at the studio as 'Margiana Belchelotti' because my last name at the time was Belcher and she was Caselotti," Champion said, laughing.

Starting work on the film at age 14, Champion said that she first saw the conceptual drawings for Snow White during auditions for the film. By the time she was hired and danced her way into the work, the Snow White's looks evolved into the iconic images today that are known worldwide.

"When they first showed me the storyboards, she looked like Betty Boop with little round eyes and a tiny waist," Champion recalled. "After that, they loosened her waist and changed her eyes to almond shape like mine. And all of the movements are exactly the way I moved in those days."

The interesting part about Champion's involvement on "Snow White" is that in addition to modeling the title character, she most notably helped give Dopey his moves. Champion's said that her work even extended to other films while she was still working on "Snow White," as she fashioned the moves for the Blue Fairy in "Pinocchio" and different characters for "Fantasia," including the Hippopotamus.

For Snow White, Champion said that the studio would film her on 16 mm reels as she danced and improvised her movements – most of the time for one or two days a month. The footage, she said, kept the animators busy for two to three weeks each time, and when all was said and done, Champion worked on the film for about two years. By the time it was released in 1937, Champion was 17.

The performer said that she didn't see a lot of Walt Disney during production, because the filmmaker was extraordinarily busy working on and raising money to ensure the film would be completed. But when she did come into contact with the film icon, he always had her best interests in mind.

"I remember him being very protective of me because he knew my father, who had been the Dean of the West Coast Dance Masters, and (Walt's daughters) Diane and Sharon spent a few months at his dancing school," Champion said. "He had me call him 'Uncle Walt' because I was too young to call him Walt."