"Skokie Invaded But Not Conquered" narrator Aaron Freemn looks at an Illinois Holocust Museum display on the neo-Nazis' efforts to march in Skokie. Museum Executive Director Rick Hirschhaut and filmmaker Todd Whitman look on. | Buzz Orr~Sun-Times Media

Narrator Aaron Freeman (from left), Filmmaker Tood Whitman, and Illinois Holocaust Museum Executive Director Rick Hirschhaut explore the landmark case of neo-Naxis trying to march in Skokie in 1977 and 1978 in a new documentary. | Buzz Orr~Sun-Times Media

A new documentary on neo-Nazis' efforts to march in Skokie in 1977 and 1978 is the subject of a new WTTW documentary. The film had its premire last week at the Illinois Holocaust Museum. | Buzz Orr~Sun-Times Media

The Illinois Holocaust Museum has an exhibit on the neo-Nazis' efforts to march in 1977 and 1978 in Skokie. The landmark controversy is the subject of a new WTTW documentary. | Buzz Orr~Sun-Times Media

Neo-Nazi Frank Collin in 1978 announces he is calling off a march in Skokie after his group is allowed to demonstrate in Chicago. | Chicago Sun-Times Library

Neo-Nazi Frank Collin in 1978 announces he is calling off a march in Skokie after his group is allowed to demonstrate in Chicago. | Chicago Sun-Times Library

Frank Collin and his National Socialist Party of America threatened to march in Skokie in 1977, sparking a landmark controversy and legal case. This history is now the subject of a new documentary. | Photo courtesy of the Illinois Holocaust Museum

A neo-Nazi group's threat to march in Skokie in 1977 and 1978 led to survivors ultimately creating the Illinois Holocaust Museum where there is an interactive display about the original event. | File photo

When the Illinois Holocaust Museum opened in 2009, a small group of neo-Nazis marched outside, a reminder of the hate that still exists in the world and why the museum was created. | Photo by Scott Olson~Getty Images.

When the Illinois Holocaust Museum opened in 2009, a small group of neo-Nazis marched outside, a reminder of the hate that still exists in the world and why the museum was created. | Photo by Scott Olson~Getty Images.

Writer/producer Aaron Freeman (foreground) looks at an interactive display while with Illinois Holocaust Museum & Education Center Executive Director Rick Hirschhaut (back left) and filmmaker Todd Whitman (back right) prior to the showing of the film "Sko