Actress Evangeline Lilly treated fans to a sneak-peek of her costume for the upcoming 'Ant-Man and the Wasp' movie. The 38-year-old posted this photo to her Instagram account showing her behind the scenes while filming. She first starred as Hope van Dyne in the 2015 'Ant-Man' and in the sequel she will take on her superhero alter ego alongside Paul Rudd (who plays Ant-Man). Lilly is perhaps best known for her role as Kate Austen in the ABC series "Lost." She won a Screen Actors Guild Award for that role and was nominated for a Golden Globe. 'Ant-Man and the Wasp' is scheduled for release in July 2018.