I just grew up watching a lot of movies. I'm attracted to this genre and that genre this type of story and that type of story. As I watch movies I make some version of it in my head that isn't quite what I'm seeing - taking the things I like and mixing them with stuff I've never seen before.
If you're a sports fan you realize that when you meet somebody like a girlfriend they kind of have to root for your team. They don't have a choice.