Captain America: The First Avenger
Bonnie is a young woman brought along to the World Exposition of Tomorrow as a date for the frail Steve Rogers. Her friend Connie is stepping out with Bucky Barnes on the eve of his departure for war, and Bonnie is paired with Bucky's best friend to round out the double date.
The evening does not spark much between her and Steve. She takes in the fair and watches Howard Stark reveal his hovering car alongside the others, but when Steve wanders off to try enlisting yet again, Bonnie goes dancing with Bucky and Connie, the night moving on without him.