Art in glorious motion. Bright, colourful and often intensely dynamic, the 1970 'Kinetics' show at London's Hayward Gallery was a major international showcase of the new active sculptural art. Works by Jean Tinguely, Nam June Paik, Peter Logan, Takis, Jesus Raphael Soto and many others dazzled a wide-eyed public. This priceless film record of the show captures a kaleidoscope of neon lights, rotating metal, squirting water and stroboscopic projections. Director Lutz Becker, of the Slade School of Art Film Unit - who would go on to direct Double-Headed Eagle (1973),a documentary account of Hitler's rise to power - uses a variety of textural, electronic sounds (courtesy of Peter Sahla) to evoke the unusual experience. The show was enormously popular, with visitors filling out the gallery day after day.

• John Ardar