Merry Christmas, ya filthy animal.Fans of the beloved 1990 film “Home Alone” went wild after a trailer was dropped on YouTube for an alleged third film starring Macaulay Culkin, Joe Pesci and Daniel Stern.The fake trailer, which features a grown up Kevin McCallister (Culkin), reportedly takes place 30 years after the events of “Home Alone 2: Lost in New York” and shows the rapscallion facing off with the Wet Bandits one final time. In the opening scene, Culkin, 43, opens the door to his home and spots a little red bag on his doorstep. Bending down, Culkin opens the card to reveal a photo of his arch-nemeses Harry (Joe Pesci) and Marv (Daniel Stern) with the words: “We’re back little buddy.” Looking out at his neighborhood, Culkin spots the familiar battered “Oh-Kay Plumbing and Heating” van parked nearby — a sign that trouble is about to ensue.