Flowers for the Man in the Moon(1975)

Original title: Blumen für den Mann im Mond

Adam, Evchen, and Manni are looking at the moon through their home-made telescope. Evchen isn't interested, and dismisses the moon as a lump of cheese. Manni, who is a big fan of technology, sees satellites and a car driving over the moon's surface. But Adam hears the moon speak, and hears it ask for flowers to cover its surface. From then on, Adam is determined to breed a kind of flower that can grow on the moon.