For years, private equity could do no wrong. But now it is starting to look like a massive money trap. It has underperformed the S&P 500 over one, three and five years, according to McKinsey.

Not only has Shyamalan seemed open to a Trap sequel in the future, but the film itself does a lot of work to set up a second story with Hartnett’s Cooper. At this point, Trap 2 may not be a sure ...