The Hollywood Ten

[1] At the time of filming in April 1950, the ten blacklisted men were facing prison sentences for contempt of Congress stemming from their non-cooperation with the House Un-American Activities Committee (HUAC).

[2] It then features them sitting at a long table where they, one by one, make a short speech denouncing McCarthyism and the chilling effect the Hollywood blacklist will have on the rights of all Americans.

IMDb notes that the film "was first shown non-theatrically in meeting halls and even in the living rooms of private homes.

[6] His fate was further sealed in April 1951 when fellow director and Hollywood Ten member Edward Dmytryk named Berry as a Communist to the HUAC.

[8][9] The cascade of events set in motion by the documentary caused Berry to be subpoenaed by the HUAC and to flee to France.