Transformers: Revenge of the Fallen has already grossed more than $55 million, the best domestic box office opening day ever for a Wednesday release, topping the previous record holder, Harry Potter and the Order of the Phoenix, which grossed $44.2 million in its first day, Variety reported.
Transformers 2, which is playing in more than 4,200 theaters in the U.S., has a strong shot at eclipsing the $152.4 million earned by Spider-Man 2 in its first five days. That film opened on the same Wednesday in 2004. Estimates have the film grossing $150 million to $170 million domestically over its five-day debut.
The opening-day haul in the U.S. included $16 million in midnight runs, the best run ever for a film released on a Wednesday. It's also the third-best of all time after The Dark Knight ($18.5 million) and Star Wars: Episode III—Revenge of the Sith ($16.9 million).