Watch Online HD on HDtoday. Klettern im Fels is an instructional documentary about rock climbing produced in 1945 by filmaker and producer Theo von Hörmann, producer of the awarded official film of the Winter Olympics in 1964 in Innsbruck 'In den Bergen von Tirol'. The same year Hörman made another instructional film about ice climbing titled 'Klettern im Eis'.