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

First Steps," Disney's debut of the rebooted Marvel Comics franchise, continued to outperform the competition for a second straight weekend at the North American box office, industry estimates showed Sunday.

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.