Frederick Stafford did not reprise his role as he was filming
Alfred Hitchcock's
Topaz and was replaced by John Gavin. The film used an idea of having the hero undergo plastic surgery to fool his enemies, an idea discarded by the film ''
On Her Majesty's Secret Service'' (1969) that was being filmed at the same time. The film was shot in Rome and Tunisia. It was known during production as
No Roses for Robert. ==Reception==