Claus von Stauffenberg
In 1954, he returned to film acting, appearing in Alfred Weidenmann's "Canaris". The following year, Preiss played the lead role of Claus von Stauffenberg in Falk Harnack's film "The Plot to Assassinate Hitler", which dramatised the 20 July plot. This role brought Preiss to popular attention and also the 1956 Federal Film Award.