u/Lumpy_Pants101

Hello photoshop!
Seeking advice for how to best photoshop this poster onto a shot in a short film I'm editing. We don't have a clean plate without the green screen, and I'm worried that's made this process a lot harder. This reference is the best I've gotten so far, only caveat is the poster design has some low res elements that we'll swap out. This is going to be in black in white for the final look, so I'm hoping that helps blend it all in too.
Any advice on how to clean this up and make it look more part of the world?