In leading supporting roles were David Tomlinson, Raymond Huntley, Finlay Currie, Richard Attenborough, John Laurie and Michael Hordern.

[2][3] Produced by Two Cities Films, it was shot at Denham Studios with sets designed by the art director Carmen Dillon.

School for Secrets tells the story of the "boffins" – research scientists –- who discovered and developed radar and helped prevent the German invasion of Britain in 1940.

Their success is illustrated by the effect radar has on the fighting abilities of the RAF over the skies of Britain in the summer and autumn months of 1940.

Unfortunately, portions of School for Secrets are too talky and tend to drag on past the point of interest, but the action scenes are excitingly handled and manage to keep the narrative aloft",[5] while Britmovie called the film a "sprightly melodrama.