Hi @go6o78, if you are concerned about the copyrights of images then it would be best for you to contact the rights holders and discuss this with them directly. Most of the imagery found on TMDb is the marketing material which is generally ok to be used for promotional use. I've always told people if this is something you are worried about you should talk to a copyright lawyer in your region to learn the specific laws. Many countries are different in this regard.

i'm worry only about google policy :) google admob and google adsence

There's some older discussions about things in that area here: https://www.themoviedb.org/talk/5487cf7bc3a3684151000540