Music by Friedrich Hollaender
Lyrics by Sammy Lerner (English lyrics)
Date 1930
Source Der blaue Engel (The Blue Angel, film)

"Falling in Love Again" is a song made famous by Marlene Dietrich, first in the film Blue Angel and then as her signature tune. Earl Sinclair sings it to an audience of young soldiers in the second season Dinosaurs episode "Nuts to War (part 2)," imitating Dietrich's German accent. Backup is provided by Charlene Sinclair on piano and Roy Hess on mandolin.

Wikipedia has an article related to: