Pink Floyd also appeared at a Free festival In Canterbury on 31 August which was filmed. This was the end leg of the Medicine Ball Caravan tour organised by Warner Brothers, which was later made into a film of the same name. It appears that the Pink Floyd footage was not included in the movie but spectators report that Atom Heart Mother was part of the set that was recorded. The audience must have been one of the smallest to see Pink Floyd at this era, only 1500 were present as the festival was not widely promoted.