Batman v Superman: Dawn of Justice was never not going to have an enormous opening weekend. Toxic reviews and mixed word of mouth mean nothing next to hype — that title alone guaranteed a record-breaking start. And right now, Zack Snyder’s superhero epic does look like a gigantic hit. However, this weekend is really all about the trailers and posters and Warner Bros.’ omnipresent marketing. The real challenge will be next weekend, when the film’s legs will be properly tested.