Directing Michael Clarke Directed Unseen Enemies 1959 Every Valley 1957 Link Span 1956 North to Wales 1956 East Anglian Holiday 1954 The Heart of England 1954 Work in Progress 1951 Mining Review 3rd Year No. 5 1950 Other Credits Let There Be Light Script 1970 'G.I.G.O Garbage In, Garbage Out' Computer History - A British View Producer 1969 The Threat in Water Producer 1968 Agent-readable