The latest Marvel tentpole dropped 66 percent from its premiere, portending bad news for the comics giant.Key PointsThe Fantastic Four: First Steps scored another No. 1 at the domestic box office.Two premieres took the No.

First Steps has reached a pivotal point in its theatrical run as second-weekend numbers confirm a significant drop after its $117.6 million debut. Early estimates show a decline of more than 60%. The film now faces growing competition from new releases.

Elsewhere at the box office, “Superman” descended to fourth place with $13 million in its fourth weekend of release. The Warner Bros. and DC Studios adaptation has generated $316 million domestically and more than $502.7 million globally to date.