Conversation so far:
What films was Herb Jeffires in?
Herb Jeffries starred in Harlem on the Prairie (1937), Two-Gun Man from Harlem (1938), Rhythm Rodeo (1938), The Bronze Buckaroo (1939) and Harlem Rides the Range (1939).
Did Herb Jeffries star in the Prairie (1937), Two-Gun Man from Harlem (1938), Rhythm Rodeo (1938), The Bronze Buckaroo (1939) and Harlem Rides the Range (1939.), or was he a supporting character?
Herb Jeffries starred in Harlem on the Prairie (1937), Two-Gun Man from Harlem (1938), Rhythm Rodeo (1938), The Bronze Buckaroo (1939) and Harlem Rides the Range (1939).
Were Herb Jeffries' films a hit?
What were the reviews for Herb Jeffries' films like?

Question: How many films did he make?
Self-contained rewrite: How many films did Herb Jeffries make?