Jessica Biel in a Noël Coward adaptation? I wasn't buying it either. But in Easy Virtue, a cheeky drawing-room quipfest, the actress acquits herself nicely as a feisty, freethinking Yank meeting her veddy proper British beau's family for the first time. Colin Firth steals the show, purring droll Wodehousian asides. EXTRAS include a chatty commentary with director Stephan Elliott. B

