Have your wand ready. "Harry Potter and the Deathly Hallows:Part 2" promises to be a boon for local theaters when it makes its debut tonight at midnight. The finale to the Harry Potter series could be the biggest opening ever at the NGC Trillium Cinemas in Grand Blanc. The record for the biggest opening at the theater is held by the 2008 Batman thriller "The Dark Knight". Several thousand people are expected to be waiting for the midnight opening of the Potter finale tonight. People are expected to line up beginning at 10am this morning. The midnight showing is already sold out and a 3am show is in the works. There is a 9pm showing of "Deathly Hallows:Part 1" at 9pm and follows it with the eigth and final movies in the series.