Tango notturno was a 1937 German film directed by Fritz Kirchoff and starring Pola Negri and Albrecht Schoenhals. The film also made a hit of Pola Negri’s rendition of the song “Ich hab’ an dich gedacht” (lyrics by Hans-Fritz Beckman, music by Hans-Otto Borgmann) which gave its title to the film. Negri’s role was originally intended for Marlene Dietrich