Word of mouth might be kryptonite for “Batman v Superman: Dawn of Justice,” which fell a steep 68 percent in its second weekend in theaters according to comScore estimates Sunday. The superhero pic earned an estimated $52.4 million over the weekend, easily besting the modest new openers like “God’s Not Dead 2” and “Meet the Blacks.”

The Zack Snyder movie cost a reported $250 million to produce and around $150 million to market, and has earned an estimated $261.5 million to date.

It’s a critical launching point for a series of interconnected movies in the DC Comics Universe from Warner Bros. that will include this year’s “Suicide Squad” and next year’s “Wonder Woman” and two “Justice League” movies, which is why its early performance – and hold – are being so intensely scrutinized.

Superhero movies tend to be frontloaded with fans analysts said, and a near 60 percent fall is not uncommon for major blockbusters in weekend two.