The site works by users entering a tv show, movie or game they like and we'll recommends some books. Books have links to Amazon where if a book is purchased we'll take a commission.
So far the biggest issue has been manaully finding content. It's a slow process but hopefully it will slowly grow to be a great resource.
https://similarbooks.to/
Are the images/posters of the movies free to use? I'm afraid you will get a C&D letter soon.