As far as I know, which is until October 2023, there isn’t any film or film with a title of “Rose Gold” which is familiar to people and has been popularized by some movie. However, the consider the following:
Independent or Upcoming Film: Rose Gold can perhaps be a working title for an indie movie or a movie that has just been released.
Working Title or Short Film: It is sometimes strange to think that there are films called Rose Gold but because of such restrictions, Rose Gold is not their debut or first much advertised projects.
Symbolic/Genre Use: The title Rose Gold though suggestive of a different revolution, this time around may suggest luxury, aesthetics, tricks and glam depending on the genre and hence knowns and not only known in drama, romance or crime fiction.
