Musical Mutiny trailer

1970 -the filmmaker was definately 'one toke over the line- Hippies, teenyboppers, and late '60s rock n roll. A ghost of a Caribbean pirate rises from his resting-place to visit his old haunt. Finding it covered by an amusement park, and seeing that Iron Butterfly is giving a concert, he decides to liven things up by opening the gates and letting screaming fans in for free. Iron Butterfly gets upset because this means they won't get paid and they storm off the stage forcing park officials to bring on local bands such as Grit, New Society, and the Fantasy to come up and play. Fortunately, a wealthy flower child offers to pay the band if they finish their concert. They accept and settle down to play their epic hit "In-a-Gadda-Da-Vida" and several other songs