...Darkseid might not be this superhero movie's greatest threat after all. Story by Matt Cummings It was a weekend for the box office history books, as Batman v Superman: Dawn of Justice set several worldwide and domestic records, but slightly under-performed here in the States. Warner Bros on Monday reported that BVSDOJ took in a domestic total of $166m, establishing a new March opening weekend record and the largest Easter opening, besting the $147.1m brought in by Furious 7 last year. It's also the largest opening for a DC Comics film, a record previously held by The Dark Knight Rises ($160.8m). Such a premiere had been a foregone conclusion, based on the extra year Director Zack Snyder took to bring the film to audiences. But with all the celebration at WB's Burbank studios, there's probably a lot of worrying going on. Destroyed by critics (with only a 29% Rotten Tomatoes rating as of this posting) and netting only a "B" CinemaScore,...