Title Compression
German poster for M (1931)
“Contrary to popular belief, Fritz Lang did not change the title from ‘The Murderers are Among Us’ to ‘M’ due to fear of persecution by the Nazis. He changed the title during filming, influenced by the scene where one of the criminals writes the letter on his hand. Lang thought ‘M’ was a more interesting title.'”
— Source: Internet Movie Database
Trivia