Deutschland. Ein Sommermärchen (2006)
Deutschland. Ein Sommermärchen, or Germany. A summer's tale is a 2006 documentary film, written, filmed and directed by Sönke Wortmann. The film records German national football team's World Cup 2006 journey, all the way from boot camp in Sardinia to the 3rd-place play-off with Portugal. The title ironically refers to Heinrich Heine's poem "Germany. A winter's tale". As opposed to Heine's melancholic view on Germany this movie illustrates the sanguine and optimistic atmosphere during the World Cup 2006.
More at Wikipedia.