In the part of the movie where Virginia is first coming to the Sheep and Sheperdess contest, you see Virginias dress shows her cleavage a little. When you see her up on stage singing, her dress line is at her neck
ive actually worn a costume similar to the one in the movie. there are a few layers to it and beneath the bodice is a looong "shirt" (i cant recall what its called). i will pull the shirt down to reveal a lot of boobie but ive noticed that if my bodice isnt tight enough my shirt starts to slide back up covering my cleavage. ill pull the shirt back down but it will still slide up until i tighten the bodice. so i suppose its possible that her bodice isnt tight enough in the movie and her shirt simply slipped back up.