 He got his first important film role in "Tischlein deck dich", a film adaption of the Brothers Grimm fairytale "The Wishing Table".His breakthrough role was as a young soldier in Bernhard Wicki's anti-war film "Die Brücke" (1959) which won the Golden Globe Award for Best Foreign Language Film.Wepper kept his popularity with German audiences into adulthood and appeared in several notable German films of the 1960s.