I'm building my first site with BackdropCMS (thank you everyone). I created and edited a standard non-home page, called "Movies", which is working and has a nav-menu item on the home page. I needed a list of 7 movies with images, so I added a "custom block" for each Movie item on the page, and edited each one manually. This was my simple way to get content to display. The Movies page is working properly.
Now I'm adding a second non-home page, called "Books". But the Books page is a clone of the Movies page -- different title/nav-menu item, but same content. The Books page is showing the Movies.
I don't think I need someone to fix my broken pages -- unless you know what the problem is. I'd like to learn why, when I create a new page from the Admin-Content menu, it shows up pre-populated with Movies, instead of empty of content? Thanks.
I got it all working, @yorkshirepudding, thank you so much.
A couple notes for my fellow Backdrop CMS newbies: