Cannes Matthew McConaughey Reese Witherspoon mud Premiere pregnant tuxedo
Cannes Matthew McConaughey Reese Witherspoon mud Premiere pregnant tuxedo Spread

Pregnancy isn't slowing Reese Witherspoon down!

The Oscar winner was positively glowing as she proudly showed off her growing bump in a gorgeous blue Versace gown adorned with sequins, while promoting her upcoming flick, Mud, with costar Matthew McConaughey at the Cannes Film Fest, on Saturday evening.

The new flick centers on a fugitive hiding on an island in the Mississippi River, when two teenage boys discover him and try to reunite him with his true love (Witherspoon), while bounty hunters chase him down.

Witherspoon said at a press conference on Saturday that she was drawn to the script because, "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."