James Stewart plays aeronautical engineer Theodore Honey, the quintessential absent-minded professor: eccentric, forgetful, but brilliant. His studies show that the aircraft being manufactured by his employer has a subtle but deadly design flaw that manifests itself only after the aircraft has flown a certain number of hours. En route to a crash site to prove his theory, Honey discovers that he is aboard a plane rapidly approaching his predicted deadline.
James Stewart
as Theodore Honey
Glynis Johns
as Marjorie Corder
Marlene Dietrich
as Monica Teasdale
Janette Scott
as Elspeth Honey
Jack Hawkins
as Dennis Scott
Elizabeth Allan
as Shirley Scott
Ronald Squire
as Sir John, Director
Wilfrid Hyde-White
as Fisher, Inspector of Accidents (uncredited)
Bessie Love
as Plane Passenger (uncredited)
Jill Clifford
as Peggy, Stewardess
Felix Aylmer
as
Douglas Bradley-Smith
as
