Funny.
Just so you know, it's not Carl Banks. It's Carl Barks. And he had nothing to do with DuckTales - he created Unca' Scrooge McDuck for comic books in 1947 (and he created lots of other Disney comics characters as well). He didn't create the nephews, either - they were created by Ted Osborne and Al Taliaferro in 1937. But it's really nice to see that you're giving him credit anyway - for us Disney comics readers, he will always be Number One.
As for the movie ... I don't have the faintest idea why, but I liked it. All of it. Nice trilogy, and keep making movies.