The Net (1953 film)
The Net U.S. Project M7 is a 1953 British film made by Two Cities Films, directed by Anthony Asquith and starring James Donald, Phyllis Calvert, Robert Beatty and Herbert Lom. The film is set in the world of aviation research and was based on the novel of the same name by John Pudney.
Matters take a sinister turn when Carrington is killed, and the project members realise there is a spy in their midst. The M7 is finally given its first tense test flight, and emerges intact. The group continue to work on modifications to iron out minor problems identified on the test flight. The finished version then takes to the sky, but this time the spy shows his hand and tries to hijack the aircraft.
Source: Wikipedia
