Cone of Silence (also known as Trouble in the Sky in the United States) is a 1960 British drama film directed by Charles Frend and starring Michael Craig, Peter Cushing, George Sanders and Bernard Lee.

[5] After beginning a writing career with his first novels based on aviation themes, Beaty returned to college to acquire his degree in psychology and became a civil servant in 1967.

[9] The real aircraft, named the Olympus-Ashton, was powered by two Olympus turbojet podded underwing engines in addition to four Nenes mounted in the standard wing root location.

[10] Severin released the blu-ray edition of this film in the box set Cushing Curiosities in November 2023, loaded with extras and for the first time on home video in the correct 2.35:1 aspect ratio.

In a contemporary review, critic Patrick Gibbs of The Daily Telegraph wrote that "[f]ew flying films have taken us so intelligently into the air as Cone of Silence" but lamented that "Mystery set against a realistic background rather than melodrama seems to me the form which would have suited this subject best ... As it is, good opportunities have been not so much missed as grabbed too greedily.

"[11] A contemporary reviewer for The Guardian wrote: "[The film] begins in a court room where the drama fails to take off and instead becomes bogged down in technical details.

"[12] After the film's 1961 release in the United States under the title Trouble in the Sky, Maxine Dowling of the New York Daily News wrote: "There are some exciting moments but they are few and far between.