Appointment With Venus (1951)

Stars:

David Niven, Glynis Johns, George Coulouris

At the outbreak of WWII the British realise they can't prevent the invasion of the Channel Islands. However, someone realises that a prize cow is on the islands and the Nazis mustn't get hold of her. This is the intrepid story of the cow-napping from under the noses of the Nazis.