on Fiction University:

What happens when a great plot meets a character readers don’t care about?
I’m a huge fan of stories in all formats, from books, to movies, to TV shows and even games. But movies are particularly useful when talking about fiction. They condense a story into 90 minutes (more or less), and are more accessible than a novel that will take hours to read.
One great example is how a pair of similar movies showed how important a strong character arc is to a character-driven story.