It is a typical old rave video. The video is a sequence of fast moving, colourful shots of the band at a live events. That video contains of course clips from that original Charly cartoon film.
If you wanna know something more about the original Charly cartoon film I suggest you to check out http://www.tecc.co.uk/matt/charley/charley.shtml. This site is a tribute to the "Charly says... " series of public information films, that were made in the 1970s, and aired during ITV commercial breaks. The site does have an incredible amount of information about the series, and even a small mention to other information safety films. The only mistake I've noticed is that they've stated Prodigy released Charly in 1993, when we all know that's two years too late!