Grumpy Cat is cranky on a daily basis, but she's even more grouchy around the holidays. The Internet-famous kitty is the star of Lifetime's upcoming movie, Grumpy Cat's Worst Christmas Ever, and she's voiced by none other than the actress who plays Parks and Recreation's resident grump: Aubrey Plaza. As someone who loves both Plaza and Grumpy Cat, it pains me to say this, but this movie does not look good. A Grumpy Cat movie just might be one of those things that is better in theory than in reality. I will say that the cat looks cuter than ever, so there's that! Take a look at the trailer, and decide for yourself whether you'll be tuning in on Nov. 29 for the premiere.