Backed by a lively score from the Oscar Peterson trio, Evelyn Lambert and Norman McLaren draw a series of random images directly on to the film. Some of these images look recognisable - I'm sure I saw a shovel, castle and an amoeba in there. Others appear more like your are unsuccessfully trying to tune in your television set. Whilst mostly haphazard sequence, there are some symmetries to be seen, too. The piece is split into three sections, each scored to a different tempo and illustrated accordingly at the same pace. There's less going on in the middle one, but the third is an inspired…