What is the movie with silk robe turning into a dragon?

The movie you’re referring to is likely "Mulan," specifically the live-action adaptation released in 2020. In this film, Mulan's silk robe symbolizes her connection to her family and heritage, and it plays a significant role in her transformation into a warrior. The dragon, Mushu, serves as her guardian and guide throughout her journey, helping her embrace her true identity and strength.