First Steps” should have dominated at the box office through the dog days of summer. Instead, ticket sales are falling fast and the superhero adventure will be unseated from the top spot on North American charts,

After a $117.6 million domestic start and promising word of mouth from its opening weekend, it looked like "The Fantastic Four: First Steps" could at least be a step in the right direction for Marvel Studios after two years of inconsistent box office returns.

First Steps had a “just fine” debut, though it couldn’t reach the heights of DC’s Superman. Now in its second weekend, the latest entry in the MCU faced a disappointing 66 percent drop off. It’s still Marvel’s biggest hit of the year,