Mister Drake’s Duck (1951)

aka: Mr. Drake's Duck

Mr. Drake and his wife live a nice, quiet life on their Sussex, England farm, until one of their ducks lays a radioactive egg made of uranium! When the government finds out about this, the armed forces storm onto the farm in a frantic search for the duck responsible. Stars Douglas Fairbanks Jr., Yolande Donlan and Jon Pertwee.