him back to do another war movie, Yesterday's Enemy (1959) with Stanley Baker. Then he made the film version of Expresso Bongo (1959) with Donlan, giving an early role to Cliff Richard. Guest returned to comedy with Life Is a Circus (1960) starring Bud Flanagan. He made another for Hammer with Stanley Baker, a tough crime film, Hell Is a City (1960). He followed this with a thriller for Hammer, The Full Treatment (1960). Guest's next film, The Day the Earth Caught Fire (1961), won Guest and Wolf Mankowitz a BAFTA Award for Best Screenplay. Guest made Jigsaw (1962) and 80,000 Suspects (1963). The Beauty Jungle (1964) was an exposé on beauty competitions. Where the Spies Are (1965) was a spy film for MGM starring David Niven. Later career Guest was one of five credited directors (another was John Huston) to work on the spoof James Bond film Casino Royale (1967), a critically mauled picture in its day. Producer Charles K. Feldman asked Guest if he would direct, linking material to make what was left uncompleted, after the departure of Peter Sellers from the project, into a coherent narrative. Guest opted for an 'Additional Sequences' credit after he saw the completed film. He made a thriller Assignment K (1968) then a musical Toomorrow (1970), a film with Olivia Newton-John in the lead. According to Christopher Hawtree, it is "a staggeringly dreadful movie". Guest issued an injunction against Harry Saltzman, the producer, because he had not been paid for his work, and the film was quickly pulled from screenings. Around the same time, Guest wrote and directed When Dinosaurs Ruled the Earth (1970) for Hammer. Guest directed the soft core sex comedy Au Pair Girls (1972) and he followed this by directing the first of the Confessions of... series of sex comedy films, Confessions of a Window Cleaner (1974). By now, he was working in television, directing episodes of series such as The Adventurer (1972–73), Space: 1999 (1976-77), and The Persuaders! (1971–72). He did direct some features including Killer Force (1976). Guest's final feature film work was writing and directing The Boys in Blue (1982), a vehicle for the British comedy double act Cannon and Ball. The film was a remake of a Will Hay picture, Ask a Policeman (1939), which Guest himself had co-written. An autobiography, So You Want to be in Pictures, was published in 2001. His last professional