It's the best of times and the worst of times for Warner Bros. right now. As the studio celebrates the financial glories of Joker, they also have to worry about just how hard The Goldfinch is bombing both here in the U.S. and internationally. Directed by John Crowley, starring Ansel Elgort and Nicole Kidman, and adapted from the acclaimed novel of the same name by Donna Tartt, The Goldfinch seemingly has all the right elements to make for a great, prestige movie. So, after a month of it hanging out in theaters, what happened? Let's get the …