Brand New Look at 'Fantastic Beasts and Where to Find Them'

I missed this Comic-Con trailer a while back, so here it is now. I have to say, this has been a mostly terrible year for movies in general, with so little overall worth seeing, and as far as studio movies go, I don't think this one looks too bad. It's the same team that made the Harry Potter movies of course, this time with JK Rowling having actually written the script, but I'm kinda curious. I should probably read the actual book, right? I read all the Harry Potters but missed out on this one.