Aquarium (1975)

The 1975 Super-8 short Aquarium is Zulueta’s first available incursion into the psychodrama—in which the filmmaker dramatises a disturbed state of consciousness—in which appear lyrical passages of the kind that will be made by the fictional experimental filmmaker played by Will More in Zulueta’s 1980 feature Arrebato. (Senses of Cinema)

Unfortunately the movie Aquarium is not yet available on HBO Max.