In the past there were few websites categorizing every weekly games, movies, DVD/Blu-ray, songs and book releases, but now they are gone.
I want to know does any such website still exist? Or any such Android app?
google now has the feature but you need to use google search with your web history on and signed in to google services when you are searching for movies, books, video games. google now will then provide you with updates and news regarding those searches.
Here are a few I found that might give you what you need. Good luck.
I'm currently using this app: https://play.google.com/store/apps/details?id=net.flixster.android&hl=ro
this is only for movies and not available in my country either