Reese Witherspoon and Matthew McConaughey were all smiles posing side by side today at their Cannes photocall for Mud. Pregnant Reese wore a Versace dress that accentuated her growing baby bump. During a press conference earlier today, Reese talked about her supporting role in Mud, saying, "I grew up with my brother in a creek, riding dirt bikes, dirt fishing, everything you see the boys in the movie doing. When I read Jeff's script, it felt like home. It's a beautiful story about the place I'm from." Reese and Matthew are expected at tonight's red-carpet premiere as well.