Hi @numbgk

1. Could you please tell me if there are any problems with the movie's copyright when I use your API and upload the app in google play? For example, store listing screenshots, trailer videos, and movie's images inside the app. If so, how can I fix it?

You can read about some other users discussing this here. I'd recommend giving it a read.

Why does the value of "video" field is always "false"?

This is a field to indicate whether or not the item is designated as a video or not. You can read about what videos are here.