"Her instinct, her mastery over the machine, was pure witchcraft. I cannot analyze this woman's acting. I only know that no one else so effectively worked in front of a camera." (Bette Davis)

Of all the great movie stars, there may be none more enigmatic than Greta Garbo, who remains internationally famous despite the fact her life and career raise more questions than answers. How did a Swedish actress with very little film acting experience in her native land arrive in the United States and achieve instant stardom? Most actresses had to wait years before they were offered starring roles in major films, yet Garbo was ushered to the front of the line and perched atop the MGM pantheon at a time in which it was the studio par excellence. How was she able to transition from silent films to "talkies" so fluidly, giving many of her most decorated performances during the 1930s? While stars like Charlie Chaplin never recovered from cinema's transition to synchronized sound, Garbo flourished, which is made all the more amazing by the fact that she had a foreign accent that could easily have alienated American audiences and threatened her career. Finally, and perhaps most mystifying of all, why would Garbo retire in 1941, at just 36 years of age, and two years removed from Ninotchka, arguably her most acclaimed film?

As unique as Greta Garbo and her career were, there is no denying the impact that she had on audiences, both critics and working-class viewers. Not only was she the most lucrative star in the country by 1928, she also provoked awe from some of the most venerable film and cultural theorists, who attempted to articulate exactly what it was about her that proved so arresting.