Although this isn't a movie but it is one of the most entertaining Fantasy stories ever, and it is being adapted for TV by the author himself.
The story is called MISTBORN by Brandon Sanderson.
Here, the main character is Vin-a timid street urchin with a dark past, while the Protagonist is the Master thief Kelsier who hopes to rob and possibly kill a god.
Story is one heck of a GAS. Here's a link to the review on goodreads. Each book is complete story.