Fifty Shades of Grey doesn't open until Thursday night, but it is pacing to become one of Fandango's top five advance ticket-sellers in the company's 15-year history, joining the elite domain of the Harry Potter, Hunger Games and Twilight franchise movies, which currently dominate the list. Take a look at Fandango's top five pre-sellers, at the same point in their sales cycles, two days before release date.1.