Reese Witherspoon and Matthew McConaughey posed for photographers before climbing the grand staircase at their Cannes Film Festival premiere of Mud on Saturday. Reese chose a glamorous blue Versace gown for the formal event that showcased her growing baby bump while Matthew modelled a sexy tuxedo. Matthew and Reese began their day at a photo call for the film before capping off their evening with a screening and after party. It's Matthew's second premiere since arriving in France. He hit the red carpet on Thursday with Nicole Kidman, Zac Efron and John Cusack at The Paperboy's star-studded premiere.