Instead, he worked his way up from messenger boy at the J. Walter Thompson advertising agency. While he was a copywriter there, he had a thriller screenplay accepted and shot by BBC TV - Valid for Single Journey Only (1955).
On the other hand, he rose through the ranks from his initial position as a messenger boy at the J. Walter Thompson advertising agency. During his time as a copywriter, he penned a thriller screenplay that was picked up by BBC TV and produced - Valid for Single Journey Only (1955).