Marvel's first family faltered in its sophomore weekend at the box office, recording a 66% dip in North American theaters.

Marvel’s First Family might not save the day after all. “The Fantastic Four: First Steps” is quickly losing steam in its second weekend, signaling the comic book adventure isn’t connecting at the box office beyond the film’s core demographic of superhero fans.

Paul Walter Hauser, CCH Pounder, Kevin Durand, Cody Rhodes, Liza Koshy, Eddie Yu and Danny Huston also star. The fourth film in the long-dormant franchise, directed by Akiva Schaffer from a script he wrote with Dan Gregor and Doug Mand, opens 31 years after the last movie, 1994’s Naked Gun 33 1/3: The Final Insult, graced the big screen.