You know the story-the Grinch steals Christmas then learns the true meaning of the holiday. To turn the thirty minute cartoon into a ninety minute movie, characters were added and backstories created. It explains why the Grinch is the way he is, besides having a heart three sizes too small. Keenan Thompson voices a neighbor who considers himself the Grinch’s BFF. Cindy Lou has a single mom, twin brothers, and a crew to help her catch Santa. The best part of the film-Max the dog.