Filmmaker Markus Imhoof’s 1981 drama The Boat Is Full, which was Oscar nominated in the foreign film category, told the story of post-World War II refugees –four Jewish people, a French child and German soldier–who seek asylum in a rigid-Switzerland. Thirty-seven years later, Imhoof returns to the same subject, but through a documentary lens, and learns that the attitudes in his homeland and Europe haven’t changed much. His latest movie Eldorado, Switzerland’s foreign…