From porn website to porn movies

[mark78]

Hi , I noticed that sometimes some porn movie's scenes are taken from some scenes that a particular pornstar shot for a website. For example : some scenes from the website "Bangboat" appear in a porn movie dvd called "Interracial Booty Patrol". I found that one by chance, but I wondered if anyone know a good database search engine that can indicate cases like the one I quoted i.e. when a porn website scene is then reproduced in a dvd movie. Thanks