So, my favourite cinematic genre is fantasy. I love it becouse it  shows something impossible, but when you see it on the screen it seems more then real. Fantasy films are films with  fantastic themes, usually involving magic,supernatural events, make-believe creatures, or exotic fantasy worlds. 
 The most prominent example in the early 21st century is the Harry Potter series of films adapted from the novels of J. K. Rowling. This story can't be called childish, even when it's about magic, mirecles and so on.Harry Potter teaches us to be brave and never give up. Ron teaches us  to be loyal. Hermione teaches us that it is normal - to be smart. Fred and George teaches us  to laugh even in the darkest of time. This book and movie form our outlook and show right priorities. It is wise and good novels, just as fantasy genre has to be.