Midsummer Rock: The Cincinnati Pop Festival 1970 (1970) is a Music, Documentary film that follows midsummer Rock is a television program based on the Cincinnati Pop Festival. The 90-minute TV version featured Alice Cooper, Mountain, Grand Funk Railroad, The Stooges, and Traffic. Midsummer Rock: The Cincinnati Pop Festival 1970 is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 7.0 out of 10 from 2 votes. Fans of music movies may also want to explore similar titles below.