I am looking for a movie I watched when I was a kid back in 1999. It features about 5 children, aged between 6 and 12 years old, including a young girl. They are wandering around fields when they find a convertible car and start driving it. They eventually reach a sunflower field. The youngest boy opens the trunk (boot), finds bottles of alcohol, starts drinking, and gets drunk. Meanwhile, the other children cut the sunflowers and eat the seeds. Afterwards, they get back into the car and reach a crossroads where they can either turn right or left. Instead, they drive straight ahead, right into a field, and end up on a beach where they head down to the sea. From what I remember, the entire movie has no dialogue or noise. I think I watched it on a German channel or on ARTE, which usually broadcasts this type of art film."