Salt of the Earth is a 1954 American drama film written by Michael Wilson, directed by Herbert J. Biberman, and produced by Paul Jarrico. All had been blacklisted by the Hollywood establishment due to their alleged involvement in communist politics.

Herbert J. Biberman was an American screenwriter and film director. He was one of the Hollywood Ten and directed Salt of the Earth (1954), a film barely released in the United States, about a zinc miners' strike in Grant County, New Mexico. His membership in the Directors Guild of America was posthumously restored in 1997; he had been expelled in 1950.