FORT GREENE Experience the most quintessential holiday tradition without even having to leave the borough. Starting tonight, BAM is hosting the American Ballet Theatre’s production of The Nutcracker, running through January 2nd. This production of the classic ballet features sure-to-be-elaborate costumes and sets by Lion King designer Richard Hudson, so expect a stunning setting. As of Wednesday, $20 tix were available for many of the shows (including Christmas Eve!) so restarting (or beginning) a new holiday tradition is well within reach.