Watching Secret Mission answered at least one question for me. The British no less than us were capable of putting out wartime propaganda flicks where the Nazis are shown to be complete imbeciles.
Secret Mission is the one that British soldiers Hugh Williams, Roland Culver and Michael Wilding were on. Williams and Culver are officers and gentlemen, but Wilding is a cheeky cockney private who happens to be married to a local from the area in France they're going. He's familiar with it himself.
Also along is James Mason who has an atrocious French accent who is a member of the Free French and he has family in the area as well.
Why they're in that particular area is unclear, but our guys get lucky in learning the Germans are building a huge underground bunker with all kinds of things stored there. Do you doubt that the guys on the mission foil the Nazi plans? They even rescued a downed Canadian flier to boot.
No one will ever confuse this film with some thing like In Which We Serve. If I didn't know any better I'd swear this one was put out by one of our poverty row studios. Look fast and don't blink and you'll catch Stewart Granger in a bit role.
Neither Granger or Mason ever bragged about being in this one.