trying to identify a movie made in the 1920's or '30s about WW1 POWs held in a Castle -- very similar story to "Colditz" but no-one got out (hero was shot just outside the castle wall). The prisoners were a mix of all nationalities -- brit, Canadian, French Belgian. I'm sure David Niven was in it but I may be wrong. The castle Kommandant was played by a famous German actor & in the film he grew a single rose? on the window-sill.
thanks cdr, the title doesn't ring a bell but I don't think I ever caught the beginning of the film - just came across it a few times on our ethnic channel while surfing. Guess it was also sold with a different title in different countries which seems to happen a lot.
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