This short film is a movie-within-a-movie as briefly presented in Inglourious Basterds (2009). Here's "Nation's Pride", the fictional propaganda film produced by Joseph Goebbels featuring war hero Frederick Zoller and his courageous act while trapped inside of a tower where he managed to kill several Allied soldiers all by himself.
Where to Watch Inglorious Basterds: Stolz der Nation
Cast of Inglorious Basterds: Stolz der Nation