Fan Casting Smurfs(live action/animated)

My idea for a smurf movie. A young squire named Johan who dreams of being a knight someday, and his best friend Pewit, came across a patch of mushrooms which is really a village that belongs to tiny blue people known as smurfs. But the evil wizard Gargamel and his more evil godfather Balthazar the Sorcerer, have plans to use the smurfs for their plans to take over the world. Will Johan and Pewit, along with other human heroes, be able to save the Smurfs from the all the villains?