Tarantino’s refusal to translate every single line is deliberate. The "non-English parts" are part of the texture of the film.
Inglourious Basterds presents unique challenges for translators and dubbing artists. inglourious basterds subtitles non english parts
The Silent Narrative: How Subtitles Shape the Tension in Quentin Tarantino’s 'Inglourious Basterds' Tarantino’s refusal to translate every single line is