This is an OTP Pod Extra. I'm Brooke Gladstone.

And that's the sound of the Stone Mason's March of the pro-Nazi German-American Bund.

Founded in 1936 and shuttered in 1939, it had, at its peak, 25,000 members and 70 chapters across the country.

While the Nazis were building concentration camps, the Bund held pro-Hitler retreats and summer camps.

February 20th marks the 80th anniversary of the Bunn's most notorious event when 20,000 of its members gathered at Madison Square Garden for a, quote, pro-American rally featuring speeches and performances staged in front of a 30-foot high portrait of George Washington.

The rally is the subject of the Oscar-nominated documentary short,

or should I say, very short,

a night at the garden by filmmaker Marshall Curry.

Marshall, welcome to OTIM.

Thanks so much for having me.

Can we start with the 32nd ad your documentary, because it's had a media

moment of its own? Well, it was not exactly what we expected. We decided to put an ad on Sean Hannity's

show, and so we... Stop there. Why? Well, we felt like the film was something that people who

watched Sean Hannity's show needed to see.

The film is about a rally in Madison Square Garden.

It is, to me, a cautionary tale about the tactics that demagogues use to whip up Americans against each other.

And when I saw the footage for the first time, I was really struck by how similar

it seemed to Trump rallies today. Not to say that Donald Trump is a Nazi, but I do think that he

uses similar tactics to the ones that we see in the film. The film begins with a rally that is

full of American flags. And then the leader takes the stage, and he begins by attacking the press.

He then goes on to tell the audience they need to take America back from the minorities that are destroying it.

A protester runs out on stage and is beaten up while the leader on stage sort of

...