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| Cast |
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| R.J. Mitchell | HOWARD, Leslie |
| Geoffrey Crisp | NIVEN, David |
| Diana Mitchell | JOHN, Rosamund |
| Commander Bride | CULVER, Roland |
| Miss Anne Harper | FIRTH, Anne |
| Mr Higgins | HORNE, David |
| Sir Robert McLean | ROBERTS, J.H. |
| Squadron Leader Jefferson | De MARNEY, Derrick |
| Mabel Lovesay | BOULTER, Rosalyn |
| MacPherson | CAMERON, Herbert |
| Lady Lucy Houston | EDGAR BRUCE, Tonie |
| Major Buchan | McLEOD, Gordon |
| Mr Henry Royce | SKILLAN, George |
| Willi Messerschmitt | FREUND, Erik |
| Von Straben | WENDHAUSEN, F.R. |
| Krantz | CHANDOS, John |
| Von Crantz | BEAUMONT, Victor |
| Madeleine | CLAIR, Suzanne |
| Bertorelli | DEL GIUDICE, Filippo |
| the specialist | O'RORKE, Brefni |
| radio announcers | WILMOT, Gerry |
| | PEACH, Jack |
| board member (uncredited) | GAWTHORNE, Peter |
| Vickers representative (uncredited) | MALLESON, Miles |
| Lady Houston's messenger (uncredited) | MILES, Bernard |
| (uncredited) | MEDINA, Patricia |
| (uncredited) | BEATTY, Robert |
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| Credits |
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| Directed by | HOWARD, Leslie |
| Production Company | British Aviation Pictures |
| Production Company (uncredited) | Misbourne Film Company |
| Produced by | HOWARD, Leslie |
| Producers (uncredited) | KING, George |
| | STAFFORD, John |
| | BRUNEL, Adrian |
| Production Manager | SAMUEL, Phil C. |
| Production Consultant | BRUNEL, Adrian |
| Assistant Director | POLLOCK, George |
| Assistant Director (2nd) (uncredited) | BEVIS, Frank |
| Assistant Director (3rd) (uncredited) | HOLLANDS, Frank |
| Continuity (uncredited) | WILKINSON, Hazel |
| Screen Play by | MALLESON, Miles |
| | de GRUNWALD, Anatole |
| Original Story by | JAMES, Henry C. |
| | STRUEBY, Kay |
| Lighting Expert | PERINAL, Georges |
| Camera Operator | HILDYARD, Jack |
| Focus Puller (uncredited) | STURGESS, Ray |
| Stills (uncredited) | PIZEY, Eugene H.E. |
| | DOOLEY, Jack |
| In Charge of Model Work (uncredited) | MILLS, Johnny |
| Model Photography (uncredited) | CROSS, Eric |
| Model Photography Camera Operation | IBBETSON, Arthur |
| Backgrounds | DAY, W. Percy |
| Film Editor | MYERS, Douglas |
| Assistant Editor (uncredited) | CATCHPOLE, Eve |
| | WILKINSON, Hazel |
| Art Director | SHERRIFF, Paul |
| Music Composed by | WALTON, William |
| Music Played by (uncredited) | London Symphony Orchestra |
| Musical Direction | MATHIESON, Muir |
| Recording Director | DENNIS, John |
| Sound Camera Operator (uncredited) | COWCHER, Sid |
| Boom Operator (uncredited) | LAMBOURNE, Stanley |
| Sound Editor | MILLER, Harry |
| Technical Advisor | COLE, Sidney |
| Publicity (uncredited) | FINDLAY, Hugh |
| Made at | D&P Studios |
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