The competition is over and the victors have been crowned. Meet Dakota Johnson, 23, and Charlie Hunnam, 33, the most eagerly anticipated screen couple of the year – Anastacia Steele and Christian Grey in the big-screen adaptation of EL James’ erotic bestseller Fifty Shades of Grey. The surprise casting of two relative unknowns has got the book’s diehard fans whipped (if you will) into a frenzy. Are they up to the job? The jury's clearly out, but here's everything you need to know about the duo everyone's talking about…