Answer:
1. The movie A Star is Born is a romantic musical. If a viewer knew nothing about the film, they could still interpret this because the two people are clearly in love through their body language, so we can see that it is romantic. The man is also holding a guitar and the woman seems to be writing what we can assume is music, so we can interpret that this is a musically-inclined movie.
2. The characters featured in this poster are a man and a woman. They are represented as close to each other, so we can see that they are in a romantic relationship. The woman is writing music, and the man has a guitar, so we can interpret that they are most likely a musical duo as well.
3. The movie poster is in black and white. It also has sharp contrast, and the font is a Serif style, with long letters and it's in a glittering gold shade. We can tell that this is a dramatic movie, because of the B&W and contrast, as well as the Serif font. The gold glitter color symbolizes love, courage, passion, and wealth, so we can also assume that those are some main themes in the film.