Left-wing documentary filmmaker Michael Moore predicts an economic crash as the result of actions by President Donald Trump.

After the official Broadway opening Thursday of his one-man show, “The Terms of My Surrender,” Moore spoke to MarketWatch. His show is both an attack on Trump and a look back at his career with the help of guest stars such as Bryan Cranston, Maxine Waters and, at last night’s opening, Gloria Steinem.

“If you study the history of the market, this is actually a very scary moment because it is doing so well,” Moore said. “This is what always happens before a crash. This is going to reach a point and it will collide in a perfect storm with some outrageous action on the part of Trump either domestically or internationally and [the economy] is going to come tumbling down,” he said.

Moore added, “I have no stocks. I advise people not to invest in the stock market, not now. Way too dangerous.”

When will the crash happen, according to Moore? “It will come whenever what it is [Trump] is going to do starts unraveling. The action he will take will scare everybody. Watch everybody pull out as fast as they can,” he said.

Moore said this year will be as good as it gets for Trump. “History will see these seven or eight months as part of his fakery,” Moore said. “It created a false sense of security that the economy was just going to keep doing so great. That’s not going to happen. It will not stay that way.”

Moore predicted last year that Trump would be elected president, but looking back, would he have done anything differently in the run-up to the election? His documentary “Michael Moore in TrumpLand” failed to match the success of his earlier documentaries, “Fahrenheit 9/11” (2004) and “Bowling for Columbine” (2002).

“I did everything I could to get people out to vote in Michigan,” he said. “But we had a hard time getting the candidate [Hillary Clinton] to come to Wisconsin and Michigan.”

“The Terms of My Surrender” is playing a limited run of twelve weeks at the Belasco Theatre, and is Moore's Broadway debut. Although the reviews have been mixed, the show last week grossed $456,195 in previews, according to the Broadway League.

As well as being a call to arms for liberals, the play contains jokes about the New York subway and New Jersey and there are Michael Moore baseball caps on sale in the theater lobby for $25.