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Two our most talented (and gorgeous) young actresses hit the red carpet yesterday to help kick off the London Film Festival. Keira Knightley and Carey Mulligan both appeared to help promote their latest film, Never Let Me Go. For the day time photo call, the ladies mixed things up a bit with clashing prints and fabrics. Mulligan opted for a pleated mustard dress with black accents from Proenza Schouler, and a pair of YSL heels. While Knightley took a braver road, choosing a Rodarte blue and white print dress and brown lace top from Prada. She completed her look with a pair of brown Louboutin stacked heels.

To find out what they wore for the evening premiere, click on...

For the night time premiere, these fashion mavens didn't disappoint either. I especially love Knightley's spangly cream knit Chanel Couture dress featuring stunning beadwork. From the back, the dress is even more breathtaking, featuring rows of buttons and low backline. While Mulligan donned a black, white and red halter dress from Vionnet's Spring '11 collection and Giuseppe Zanotti for Vionnet gold wedges.

Which looks do you prefer on the ladies? Tell us by commenting below.