Question: What year was the film, which used the process to generate animated images and is attached to "The Smurfs" film, released?
Sentence (from "The Smurfs: A Christmas Carol"): The animated short was written by Todd Berger and directed by Troy Quane, and it stars the voices of George Lopez, Jack Angel, Melissa Sturm, Fred Armisen, Gary Basaraba, Anton Yelchin and Hank Azaria.
Relevant evidence: No