On Monday night, Donald Trump’s national security adviser Michael Flynn resigned after holding the position for less than a month. Flynn blamed the “fast pace of events” for his resignation, apologizing for inadvertently briefing the-President-elect Mike Pence and others with “incomplete information regarding my phone calls with the Russian Ambassador.”

Flynn, a retired U.S. Army Lieutenant General who was the 18th director of the Defense Intelligence Agency, served for a total of three weeks and three days before resigning amid controversy.

The news prompted a quick response from Hollywood. Here’s what some industry players are saying about his resignation: