Updated March 21, 2016: With the first wide-scale public screenings of Batman v Superman: Dawn of Justice just hours away, Deadline projects a global opening weekend box office of $350 million as it opens on an estimated 35k screens around the world. A significant portion of its global opening will be from China, where it is opening simultaneously with North America, a relatively unusual occurance.
Of course critical reception is still to be measured, but Deadline cites sources calling Sunday's New York City premiere at Radio City Music Hall "like a rock concert" as the heroes debuted on screen, and advance ticket sales in the U.S. are said to be between $20m-$25m.
The Zack Snyder-directed film reportedly cost $250m for Warner Bros.
Original Story: With just over three weeks until it debuts, early box office tracking for Warner Bros.'s Batman v Superman: Dawn of Justice projects a $300 million to $340 million global opening weekend, according to Deadline. The estimates have $120-$140m coming from North American theaters, with international screenings pulling in an additional $180-$200m.
As the Hollywood trade notes, that $300-$340m would place the DC tentpole movie fifth behind previous superhero films' opening weekends such as Avengers, Avengers: Age of Ultron, Spider-Man 3 and Iron Man 3.
Keep in mind, successful superhero movies tend to track lower than their actual openings. Most recently, even optimistic box office tracking missed Deadpool's $132m U.S. opening weekend by half. If Batman v Superman is received well, $120-$140m domestic is likely a conservative estimate.
Batman v Superman will reportedly open in over 30,000 screens across all markets simultaneously -- with the exception of China. The film will be shown in a variety of formats ranging from tradition to 3D, 4DX, PLF, Imax and even select 70MM versions.
Back in April 2015, The Hollywood Reporter estimated that Zack Snyder-directed film had a budget of $200 million.
Batman v Superman: Dawn of Justice is scheduled to open in theaters March 25.