Final answer:
The white outfits worn by Don and Lina at the premiere of their new film symbolize purity, innocence, and hope for success.
Step-by-step explanation:
The color symbolism associated with Don and Lina's white outfits that they wear at the premiere of their new film at the beginning of the film can be interpreted in several ways. In Western culture, white is often associated with purity, innocence, and elegance, and is traditionally worn by brides. It can also symbolize hope, new beginnings, and success. In the context of the film, the white outfits may represent the characters' aspirations for success in their new film and their desire to project an image of purity and success to the audience.