The Nazis didn't care for All Quiet on the Western Front due to its lack of pro-national fervor. And they weren't fans of the source material. Remarque's novel found itself on the Nazi's banned and burned list…and ultimately it would be a crime to own the novel in Nazi Germany. (Source)

Arthur Gardner was the last surviving member of the cast and crew. He passed away on December 19, 2014. He has a blink-and-you'll-miss-it role as a student in Paul's class. (Source)

Lewis Milestone had Universal scout the Los Angeles area to find German Army veterans to ensure the film's authenticity in equipment and uniforms. So many veterans answered the call that Milestone casted many as German soldiers in the film and had them drill extras playing the troops. (Source)

Since the last scene of the movie was filmed during post-production, Lew Ayres, the actor who played Paul, wasn't available. So director Lewis Milestone stepped up and played Paul—well, Paul's hand—in that tragic scene. (Source)