The writer-director who made moviegoers care what ”Shawshank redemption” meant is gearing up for another Stephen King adaptation. This time it’s The Mist, about New Englanders trapped in a supermarket by a mysterious force (no, not the insidious lure of double coupons). Think of Lifeboat crossed with The Twilight Zone. ”Steve had been holding on to ‘The Mist’ for 10 years, saying no to a lot of people,” says Darabont, 37, who’s also awaiting a new Star Wars installment, which he’ll script whenever super-poky George Lucas delivers him a story. Call it Darabont’s we’ll-see-quel.