The classic horror movies of Hollywood's Golden Age get a chance to shine in season four's black and white "Monster Movie." Smartly written and beautifully shot, this episode truly has it all: Dean living his best life at an Oktoberfest, a shapeshifter with a love for the classics, and Dean in lederhosen. It's funny, it's a little bit artsy, and it's the perfect homage to all of the horror movies that paved the way for shows like Supernatural to flourish.