In "The Hunger Games: Catching Fire," Katniss wears a wedding dress during her interview with Caesar Flickerman. President Snow orders her to wear the gown because the Capitol wants to emphasize the supposed romance and future marriage between Katniss and Peeta.
The dress is designed by Cinna, Katniss's stylist, and appears to be an elaborate white bridal gown. Its hidden purpose is revealed when Katniss spins during the televised interview: the dress catches fire and transforms into a dark costume resembling the wings and feathers of a mockingjay. The mockingjay has become a powerful symbol of resistance against the Capitol.
This moment is more than a fashion spectacle. Cinna secretly turns Snow's propaganda into rebellion, using Katniss's public image to communicate defiance to viewers across Panem. A common mix-up is confusing this gown with Katniss's earlier Girl on Fire costume from the first film. The wedding dress appears during the pre-Games interview for the 75th Hunger Games, also called the Third Quarter Quell.