See if any of you recognize the following:
Nothin But a Man, 1964, Ivan Dixon and Abbey Lincoln
If He Hollers Let Him Go, 1968, Raymond St. Jacques
Cotton Comes to Harlem, 1970, starring Raymond St. Jacques and Godfrey Cambridge
Sweet Sweetback's BaadasssSong, 1971, Melvin Van Peebles
Shaft, 1971, Richard Roundtree
Lady Sings the Blues, 1972, Diana Ross and Billy Dee Wi lliams

Cooley High, 1975, Lawrence Hilton Jacobs and Glynn Turman,

Trivial:
James Earl Jones, Billy d. Williams, and Richard Pryor were among the stars in this old time baseball story that was in 1976.

Joseph