Primary is a documentary film about the primary elections between John F. Kennedy and Hubert Humphrey in 1960. Primary is the first documentary to use light equipment in order to follow their subjects in a more intimate filmmaking style. This … Robert Drew, Hubert H. Humphrey, Muriel Buck Humphrey, Joseph Julian, Jacqueline Kennedy, John F. Kennedy, Robert F. Kennedy Added on HBO 2023-06-27, leaving 2024-10-01.