1970s SUMMER SUNSHINE empire tween long dress . fits girls 10 to 12
When I saw the trailer, at 1:07 I saw the yellow dress. I wasn't sure though, but I had the feeling that it was it.

At 1:48, I saw it! YES! I knew that it was the dress worn by the character Amelia Stuart, played by Imogene Wolodarsky.

Among all the thousands and thousands of vintage shops online, a 1970s children's dress from my shop was chosen as a wardrobe piece for this movie, Infinitely Polar Bear that starred Mark Ruffalo and Zoe Saldana.
Based on a true story, Infinitely Polar Bear is showing in theatres near you starting tomorrow, June 19, 2015. Check other opening dates here.