It's very common to see this view but in reality, our earth doesn't have that one. We only have one Moon orbiting around our Mother planet. In sci-fi movies what is this term commonly called? Most western movies some Japanese sci-fi anime includes that view.
For example in the 2009 science fiction film Avatar, you can see there is a planet seen in the sky:
It looked like Jupiter but the planet is Polyphemus.
Here's a promotional photo of the movie Avatar with a fantasy landscape view, where a planet is seen in the sky:
In the 2014 dieselpunk sci-fi movie Garm Wars: The Last Druid By Mamoru Oshii, we can also see one planet in the sky called "Gaia":
The 1985 retro futuristic anime series Dirty Pair we also see the landscape of a futuristic city "Eleanor" where planets are also seen on the night cloudy sky, one is a large planet and one small planet are seen in the sky:
Daytime view of the planets in the sky on Eleanor City
Why did the director or the creator put some planets like these in the sky like this?