This film was made by punching circular holes into fully opaque film stock and laying discs of colour film into some of the punched holes. Only the original copy of this film exists – it cannot be printed and is therefore projected only on rare occasions. As with other Le Grice films from the late 1960s, Spot the Microdot is marked by a radical rejection of ‘illusionism’, choosing to focus instead on the material properties of the film medium itself.

• BFI