When it premiered on September 23, 1994, “ The Shawshank Redemption ” barely registered at the box office. The prison drama opened at No. 9, below the odious sex comedy “ Exit to Eden ” and just above Robert Redford’s “ Quiz Show ,” already in its fifth week. Though nominated for seven Academy Awards, the film failed to connect with audiences and vanished from theaters with little fanfare. And then, slowly but surely, its fortunes began to change. On its 20th anniversary, here’s how “ The Shawshank Redemption ” beat the odds and became a beloved classic. Stephen King Prior to 1982, most readers thought of King as an author who wrote only horror, but the publication of “ Different Seasons ” changed all that. A critically acclaimed bestseller, this beautifully crafted collection of four dramatic novellas introduced King to an even broader audience. The book’s first story, “ Rita Hayworth and Shawshank Redemption ,” remains one of his most deeply humane and hopeful works of ficti