Michael Moore gives details on his anti-Trump documentary and shares the release date

• Michael Moore went on "The Late Show with Stephen Colbert" on Thursday and revealed details and a clip of his upcoming documentary, "Fahrenheit 11/9."
• The movie will focus on Donald Trump's presidency.
• The Oscar-winning filmmaker also said the movie would be released in theaters on September 21. 

On Thursday, the Oscar-winning filmmaker Michael Moore paid a visit to "The Late Show with Stephen Colbert" to give the first glimpse of his upcoming documentary, "Fahrenheit 11/9."

The project will be a look at President Donald Trump and the state of the country. And in typical Moore fashion, the filmmaker will be front and center throughout the story.

In a clip that Moore showed during his chat with Colbert, Moore pulls up to the gates of Trump's Mar-a-Lago resort in Palm Beach, Florida — "the Southern White House," as Moore refers to it — and asks to see Trump. It's one of the classic bits you see in all his movies: showing up unannounced and trying to get time with the big name he's focused his story on. At one point, while talking to security, Moore says, "Just tell him it's me."

Moore ended up not getting any time with the president while shooting that footage. After the clip, Colbert asked Moore whether he was civil when he went to Mar-a-Largo.

"I am as civil as any Eagle Scout, Catholic altar boy could be when confronted with the devil," Moore said.

Moore also talked to Colbert about the state of the country, including Trump's "zero tolerance" immigration policy that has led to thousands of children being separated from their parents at the US-Mexico border. Moore said that now when he picks up the newspaper every day he cries.

"We're not talking about political differences," he told Colbert. "We're talking about thousands of children being kidnapped from their parents and put in jails."

It's unclear how much of what's going on in the country now will be in Moore's movie. He has hinted on Twitter that it might be more than just Trump he'll be touching on.

In one recent tweet with a clip of him and Trump as guests on Roseanne Barr's late-1990s talk show "The Roseanne Show," Moore wrote: "I know Roseanne. And I know Trump. And they are about to rue the day they knew me."

In the clip, Trump congratulates Moore on his documentary "Roger & Me" and says jokingly, "I hope he never does one on me."

Moore told Colbert that "Fahrenheit 11/9"— which refers to November 9, 2016, the day after Trump was elected — would be released on September 21.

Originally, Moore was set to release the movie through Harvey and Bob Weinstein, who had bought the worldwide rights to it. But according to The Hollywood Reporter, the movie will now be released through Briarcliff Entertainment, the new company from the veteran film executive Tom Ortenberg, who stepped down as CEO of Open Road Films last year.

Watch Moore's "Late Show" interview below:

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