Besides, of course, the excellent timing of all 4 actors and actresses in this scene, it is the dialogue - the writing! - what makes it absolutely outstanding. A friend of mine once said that "Cabaret" was the perfect movie, by which he meant that you could not improve on neither the casting, nor the acting, the writing, the editing or the directing, much less the production design or the costumes - even if you tried! The attention to detail is simply astonishing (e.g. Fritz Wepper trying to cover his torn cuffs, the accents, etc.)!
